Improving searchpaths support
More searchpaths improvements. Don't copy searchpaths when saving as projects in studio
Extra searchpaths checks
fixed conflicts with master
pull request cleanup and small fixes
refactor common save and save_as code into own function
removed extra whitespace
in SearchPaths, treat the root path independently. Remove special case in ProjectFileWriter and other small issues.
Added new OmitSearchPath option
Merge pull request #282 from est77/searchpaths

Many improvements around foundation::SearchPaths.