add custom TextCtrl allowed to enter long integer with bounds checking

It's needed because wx.SpinCtrl supports only 'int' type. For UDINT
and (U)LINT long type is necessary.

use pytest for testing

run separate test on every project instead of one big long test all projects

move configuration for test environment into separate file conftest.py

lazy initialization of highlight pens and brushes for DebugVariableViewer

Constructors wx.Pen() and wx.Brush() require wx.App to exist already.
That causes crash during import of the control,
because import is done before calling main application code.

add '_' function to builtin dictionary at import time

This allows to import many Beremiz python modules before calling
util.misc.InstallLocalRessources().

remove builtin BMZ_DBG. It's not used.

update translation strings

updated all existing translations
added new languages: Portuguese (Portugal), Italian, Hungarian,
Spanish and Bengali. See version.py for information about translators.

fix LINT and ULINT ranges

found installed Inkscape on Windows

tested with Inkscape version 0.9 on Windows 7.

make possible to turn off at compile time online debugging, logging
and external sync functionality

Defines TARGET_DEBUG_DISABLE, TARGET_LOGGING_DISABLE, TARGET_EXT_SYNC_DISABLE
allow to use generated PLC code in low-cost microcontrollers,
integrate into external programs and so on.

main.c:
extern void __run(void);
int main(void)
{
for(;;) {
__run();
// sleep common_ticktime__ ns
// add common_ticktime__ ns to __CURRENT_TIME
}
return 0;
}

Compile for example for arm bare-metal:
../build$ arm-none-eabi-gcc \
-DTARGET_DEBUG_DISABLE -DTARGET_LOGGER_DISABLE
-DTARGET_EXT_SYNC_DISABLE \
-flto -ffunction-sections -fdata-sections -I../../../../matiec/lib/C \
*.c \
-nodefaultlibs --specs=nano.specs -Wl,--static -Wl,--gc-section -Wl,--start-group -lc -lm -lnosys -lgcc -Wl,--end-group

make default caption for PouNameDialog translatable

fix max value for UDINT and ULINT types

update Build icon

add couple Beremiz application tests

These tests trigger around 45% of python code.
Used in tests docker files are avaiable here:
https://bitbucket.org/skvorl/beremiz-dockerfiles

fix problem if _should_write is called by expired timer after
termination of wx application.

Initial Bitbucket Pipelines configuration

fix bug with unfinished debug thread
this bug occurs when user doesn't stop debugging process in current project, and opens another project

unify exception handling of Beremiz and PLCOpenEditor

fix problem running PLCOpenEditor

$ ./PLCOpenEditor.py
../src/common/stdpbase.cpp(62): assert "traits" failed in Get(): create wxApp before calling this

Regression was introduced by '3311eea' (clean-up: fix PEP8 E402 module level import not at top of file)

don't check any particular wx version

Beremiz works with any version of wx.

fix problem when Beremiz is running without matiec installed

set matiec settings only once on first use of ProjectController class and give
user-friendly message on compilation about missing matiec
installation.


Traceback (most recent call last):
File "Beremiz.py", line 197, in <module>
beremiz.Start()
File "Beremiz.py", line 192, in Start
self.CreateApplication()
File "Beremiz.py", line 130, in CreateApplication
self.BackgroundInitialization()
File "Beremiz.py", line 137, in BackgroundInitialization
self.ImportModules()
File "Beremiz.py", line 176, in ImportModules
import BeremizIDE
File
"BeremizIDE.py", line 76, in <module>
from ProjectController import ProjectController, GetAddMenuItems,
MATIEC_ERROR_MODEL, ITEM_CONFNODE
File
"ProjectController.py", line 177, in <module>
iec2c_cfg = Iec2CSettings()
File
"ProjectController.py", line 101, in __init__
self.ieclib_c_path = self.findLibCPath()
File
"ProjectController.py", line 135, in findLibCPath
os.path.join(self.ieclib_path, "C"),
File "/usr/lib/python2.7/posixpath.py", line 70, in join
elif path == '' or path.endswith('/'):
AttributeError: 'NoneType' object has no attribute 'endswith'

Initial Bitbucket Pipelines configuration

add configuration for Bitbucket pipelines

add shell script to test Beremiz python code

currently only codestyle checking is done using pycodestyle (ex-pep8).
Later checks by flake8 and pylint maybe enabled.

clean-up: fix PEP8 W503 line break before binary operator

fix codestyle issues according to PEP8

clean-up: fix PEP8 E402 module level import not at top of file

clean-up: fix PEP8 E265 block comment should start with '# '

clean-up: fix PEP8 E266 too many leading '#' for block comment

clean-up: fix PEP8 E722 do not use bare except'

better it'd be to use particular exception instead of 'except Exception'.

clean-up: fix PEP8 E115 expected an indented block (comment)

clean-up: fix PEP8 E721 do not compare types, use 'isinstance()'

clean-up: fix PEP8 E131 continuation line unaligned for hanging indent

clean-up: fix PEP8 E122 continuation line missing indentation or outdented

clean-up: fix PEP8 E713 test for membership should be 'not in'

clean-up: fix PEP8 E272 multiple spaces before keyword

clean-up: fix PEP8 E124 closing bracket does not match visual indentation

clean-up: fix PEP8 W191 indentation contains tabs

clean-up: fix PEP8 E211 whitespace before '[' or '('

clean-up: fix PEP8 E114 indentation is not a multiple of four (comment)

clean-up: fix PEP8 E125 continuation line with same indent as next logical line

clean-up: fix PEP8 E128 continuation line under-indented for visual indent

clean-up: fix PEP8 E127 continuation line over-indented for visual indent

clean-up: fix PEP8 E129 visually indented line with same indent as next logical line

clean-up: fix PEP8 W602 deprecated form of raising exception

clean-up: fix PEP8 E502 the backslash is redundant between brackets

clean-up: fix PEP8 W601 .has_key() is deprecated, use 'in'

clean-up: fix PEP8 E731 do not assign a lambda expression, use a def

clean-up: fix PEP8 E203 whitespace before ','

clean-up: fix PEP8 E262 inline comment should start with '# '

clean-up: fix PEP8 E712 comparison to True should be 'if cond is True:' or 'if cond:'

clean-up: fix PEP8 E222 multiple spaces after operator

clean-up: fix PEP8 E111 indentation is not a multiple of four

clean-up: fix PEP8 E701 multiple statements on one line (colon)

clean-up: fix PEP8 E741 ambiguous variable name

clean-up: fix most PEP8 E221 multiple spaces before operator

clean-up: fix most PEP8 E266 too many leading '#' for block comment

clean-up: fix PEP8 E703 statement ends with a semicolon

clean-up: fix PEP8 E301 expected 1 blank line, found 0

clean-up: fix PEP8 E306 expected 1 blank line before a nested definition, found X

clean-up: fix PEP8 E305 expected 2 blank lines after class or function definition

clean-up: fix PEP8 W391 blank line at end of file

clean-up: fix PEP8 E201 whitespace after '{'

clean-up: fix PEP8 E202 whitespace before ')'

clean-up: fix PEP8 E227 missing whitespace around bitwise or shift operator

clean-up: fix PEP8 E251 unexpected spaces around keyword / parameter equals

clean-up: fix PEP8 E711 comparison to None should be 'if cond is not None:'

clean-up: fix PEP8 E225 missing whitespace around operator

clean-up: fix PEP8 E303 too many blank lines

clean-up: fix PEP8 E231 missing whitespace after ':' or ','

clean-up: fix PEP8 E203 whitespace before ':' and whitespace before ','

clean-up: fix PEP8 E271 multiple spaces after keyword

clean-up: fix PEP8 E261 at least two spaces before inline comment

clean-up: fix PEP8 E302 expected 2 blank lines, found 1

clean-up: fix PEP8 W293 blank line contains whitespace

clean-up: fix some PEP8 E228 missing whitespace around modulo operator

clean-up: fix some PEP8 E265 block comment should start with '# '

clean-up: fix PEP8 E401 multiple imports on one line

convert some files from CRLF to LF

It'll break for these files hg blame/annotate. Fortunately not many
files are affected.

clean-up for PEP8: fix W291 trailing whitespace

README.md edited online with Bitbucket

fix link to documentation in README.md

Add information about built official documentation to README.md

don't allow empty dimension for ARRAY types

ignore built documentation

manual: add untranslated po files for French and Korean

build missing pot files, when building HTML documentation

fix some typos

Changed title of new project dialog from:
Choose a project
to
Choose an empty directory for new project

Changed title of New Project dialog
from
Chose a project
to
Choose an empty directory for new project

skip hidden files and directories on permission check

To fix problems with git, because .git subdirectory contains
read-only repository objects.

change structure of filename for bug reports in Beremiz and
PLCOpenEditor so bug reports could be easily sorted by name

fix target Xenomai missing functions

update messages.pot and messages.po