getloadavg() is unsupported on Qnx
don't use USE_UNIX_BACKTRACE_SUPPORT on Qnx
Merge pull request #488 from Ni2c2k/master

Build for Qnx
Fixed #6339 (false negative: array index out of bounds on allocated buffer using valueflow)
Refactoring: Avoid to load posix.cfg multiple times while testing (testother.cpp) (#6336)
Fixed #6341: false negative uninitvar pattern "return foo ( %var%"
fix two internal warnings:
[lib/checkuninitvar.cpp:1668]: (style) Call to 'Token::tokAt()' followed by 'Token::str()' can be simplified.
[lib/checkuninitvar.cpp:1669]: (style) Call to 'Token::tokAt()' followed by 'Token::str()' can be simplified.
Updated TinyXML

https://github.com/leethomason/tinyxml2
Fixed #6335: Added definition for Q_PROPERTY to qt.cfg
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]
PEP8 fixes.