add translation into Russian for dialog window "About PLCOpen Editor"

add translation of "about" window into Russian

make About and Find dialogs have the same icon as main Beremiz window

all child windows will take the parent's icon, if no other is specified.

fix splash loading with wx3.0

Previously only gray square was shown. Apparently to show splash screen several calls of wx.Yield() are necessary.
Unfortunately splash.IsShowOnScreen() returns always 1 regardless of whether splash is on the screen or not.
this fix is a dirty hack. It just process all events after splash is created during 0.3 seconds.

add i18n for couple of strings in TextViewer.py
add source file for Russian translation
update messages.pot and app.fil
update Russian translation

increase height for ConnectionDialog and ArrayTypeDialog to have
enough place for buttons

add Russian translation

bitmap in wx3.0 doesn't have useAlpha() method

Suppress WXDEBUG assertions, as happens by default with wx2.8. This is
necessary for wx3.0

Exception while connecting LOCAL://!
Traceback (most recent call last):
File "/home/beremiz/beremiz/ProjectController.py", line 1560, in _Connect
self._SetConnector(connectors.ConnectorFactory(uri, self))
File "/home/beremiz/beremiz/ProjectController.py", line 1508, in _SetConnector
self.StatusTimer.Start(milliseconds=500, oneShot=False)
File "/usr/lib/python2.7/dist-packages/wx-3.0-gtk2/wx/_misc.py", line 1324, in Start
return _misc_.Timer_Start(*args, **kwargs)
PyAssertionError: C++ assertion "m_window" failed at ../src/gtk/dcclient.cpp(2043) in DoGetSize(): GetSize() doesn't work without window

enable use of wxWidgets-3.0