Fix grammar
Some minor improves
Merge pull request #1381 from diegosarmentero/master

Some minor improves
NINJA-IDE creating, opening and saving files
Merge pull request #1382 from diegosarmentero/master

NINJA-IDE creating, opening and saving files
Started projecttree refactoring
from import dialog working
improves in ComboEditor widget
adding translation to CodeNavigator widget
Merge pull request #1384 from diegosarmentero/master

Improves in ComboEditor widget
Started work on project tree
forwarding current editor changed
Merge remote-tracking branch 'upstream/master'
change function name
Merge pull request #1385 from diegosarmentero/master

forwarding current editor changed
Several improves in CodeEditor and contextual menu for files
Merge pull request #1386 from diegosarmentero/master

Several improves in CodeEditor and contextual menu for files
some fixes and adding shortcut to expand combo file
Merge pull request #1387 from diegosarmentero/master

some fixes and adding shortcut to expand combo file
shortcut to close opened file