Fixed #5403 (Value flow: FP because post increment/decrement is not handled correctly)
cleanup
value flow: fixed multivariable problem in condition
value flow: fix fp when conditional value is assigned
Fixed #3535 (Leaking socket)
Fixed #2776 (false negative: usage of unitialized pointer (closedir))
Add VS2013 projects for my personal use (using /LTCG, /MP, /RELEASE, /MT).
Add a script to run coverity with VS2013.
Move astyle options to astyle.ini.

This way we can use it in runastyle and runastyle.bat.

Settings changes:
* specify the files to exclude instead of specifying the files to style
* remove `--lineend` option
* keep the file's modified timestamp
* only show the styled files on the command output

Also change the astyle version check to only check for older not the exact version.
Update runastyle.bat from MPC-HC.

It includes a check if astyle is present and for astyle's version.
Also, it allows drag and dropping files onto it to style them.
Remove multiple newlines.
win_installer: convert the bitmaps to jpg.

They are ~230KB less without any visual difference.
Update project files for the recent translation changes.
htdocs: update node.js dependencies.