avr.cfg: Added more defines.
avr.cfg: Added accidently commented out define.
avr.cfg: Added macros of stdint.h.
avr.cfg: Removed NAN definition.
ValueFlow: Refactoring. Use utility function isVariableChanged.
ValueFlow: analysis in condition.
avr.cfg: Added support for some stdio.h macros.
htdocs: change link to trac
htdocs: removed files, they have been moved to the repo cppcheck-htdocs
Clean up .gitignore and remove the currently unneeded .gitattributes file.

[ci skip]
Update .gitignore.

Remove accidentally added file.

[ci skip]
Refactoring: Removed CheckNullPointer::nullPointerByCheckAndDeRef and implemented needed analysis in ValueFlow instead.
travis: change build optimization level back to -O2 (from -O3) as discussed in
https://github.com/danmar/cppcheck/commit/59077b06f9be2597db57753a27aff93ee294a670
Merge pull request #344 from matthiaskrgr/travis_O

travis: change build optimization level back to -O2 (from -O3) as discussed
Refactoring: Move isScopeNoReturn implementation to library and reuse it both in ValueFlow and Tokenizer
Astyle run; Extended std.cfg and avr.cfg about a few more functions.
Extended std.cfg and avr.cfg about more functions.
std.cfg: Added support for bsearch.
Fixed #5923 (false positive: (error) Resource leak: fp (static file pointer))
Improved performance of CheckBufferOverrun::checkScope() (#5944):
-> Speedup by 40% (MSVC12, x64, not matchcompiled) on the file attached to the ticket