Added osx workaround for windows not raising to the front on startup
Merge github.com:ninja-ide/ninja-ide
several improves in tree projects methods
Merge pull request #1440 from diegosarmentero/master

several improves in tree projects methods
corrected tab/spaces mix on osx fix
Merge pull request #1435 from perrito666/master

Fixed window being in background in osx
several improves in tree exploreer and symbols complete
Merge pull request #1442 from diegosarmentero/master

several improves in tree exploreer and symbols complete
improves in explorer and tabs
Merge pull request #1443 from diegosarmentero/master

improves in explorer and tabs