Add environment.h,cpp to XCode project and restore build from XCode.
Merge pull request #151 from simartin/xcode_build_environment

Add environment.h,cpp to XCode project and restore build from XCode.
htdocs: web archive. when addfile/deletefile/renamefile are done, show message and OK button.
htdocs\site\js\github.js: remove unneeded JSHint rules.
htdocs: Re-license files under GPLv3, the same as Cppcheck itself.
Add VS2012 projects for my personal use (using /LTCG, /MP, /RELEASE, /MT)
Move astyle options to astyle.ini and use it in runastyle and runastyle.bat.
astyle.ini: use --lineend=windows since when having autocrlf=true using --lineend=linux messes up the line endings
Add a script to run coverity with VS2012.
Update jquery to 1.10.2 and add a local fallback.
Fix democlient compilation under MSYS.