Started projecttree refactoring
Started work on project tree
Merge pull request #1387 from diegosarmentero/master

some fixes and adding shortcut to expand combo file
Merge pull request #1388 from diegosarmentero/master

shortcut to close opened file
Merge pull request #1389 from diegosarmentero/master

Several improves in Main Container refactoring.
Merge pull request #1390 from diegosarmentero/master

reopen last closed files
Merge pull request #1391 from diegosarmentero/master

some improves and remove unnecessary code
Merge pull request #1392 from diegosarmentero/master

adding qt resource file and chevron image for the combos
Added base functional treeview, reconnected opening of files and
expand/collapse storage
Merge github.com:ninja-ide/ninja-ide
Fixed bug in __add_file that prevented files from opening
Just some code deletion, committing because I need to swap computers
Merge pull request #1395 from perrito666/master

Base project tree
improves in checkers
Merge remote-tracking branch 'upstream/master'