Merge with Edouard's modifications

Fix STEP and ACTION structure initialization value in SFC

Applied anonymous contribution RTC, '[Beremiz-devel] RTC function', 29/06/11

Fix bug with functions like LEN and TRUNC that have overloaded return type for same inputs type

Fix issues in standard library with MUX, MOD, NE and convertions to BOOL

Adding Common_Ticktime to informations printed in VARIABLES.csv file

Fixing bug with external variables refering to global variables defined in configurations

removed useless extern func declaration in __INIT_EXTERNAL, producing warning during build of POUS.c

Fixing bug in generated code for complex type external variable

Fixing SUB standard function defined in standard library

Fixing generated code for global variables. Adding support for defining global variables with complex type
Fixing bug preventing to generate SFC transition with IL body

Fixing bug in all SUB function definitions in standard_functions.txt

Fix bug when using enumerated type in equ_expression or notequ_expression

silenced warning on X86_64 build by casying numerical operand of snprintf

Fix bug in generate_c_inlinefcall. Was not handling textual SFC elements

Fix code generation of FOR loops. Now handles negative values of BY correctly.

Fix semantic verification of enumerated data types.

Adding a line to a comment. Does not change any code.

fixed signedness warning on string slicing funcs in std lib

Fix bug generate_c_inlinefcall in inline function name generated

Fix bug in parser while trying to use IL operator like S1, R1, etc... as standard function block interface variable in structured_variable syntax and bug in code generator while generating code for assignment of function block interface variable using structured_variable syntax

Fix bug in code generation of directly declared array variables that generate wrong code when using located variables in a program POU

Fix bug in generate_c_inlinefcall.cc that prevent to use extendible standard functions

Fix bug in definition of CONCAT standard function in iec_std_lib.h

moved declaration __STR_CMP to prevent warning

Adding support for compiling direct array specification inside variable declaration

Making case statement code generated safer

Merge with 01068ccb73b202b2872d4117ad01984bac956cbb

Fix make on system without mercurial installed.

delete code no longer needed.

Implement get_type_decl(), as it seems Manuele will need it later...

Cleaning up: Getting some sense into the code handling structures.