CLI: don't use unix-signals if NO_UNIX_SIGNAL_HANDLING is defined. don't use unix-signals in os/2.
Fixed #5916 (ValueFlow: Add a valueFlowAfterCondition() function)
ValueFlow: Fixed testcase
Add VS2013 projects for my personal use (using /LTCG, /MP, /RELEASE, /MT).

[ci skip]
Add a script to run coverity with VS2013.

[ci skip]
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.

[ci skip]
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.

[ci skip]
Remove multiple newlines.

[ci skip]
Tweak sorttable.js.

[ci skip]
Update Apache config to v2.5.0.

[ci skip]
htdocs: update dependencies.

[ci skip]
Remove duplicate semicolons.