IDEX-1174: preserve expanded items in the 'Project Explorer' after modifying any items in the tree
Merge with remote master
IDEX-1174: prevent situation when no selected item in the 'Project Explorer'
IDEX-1174: code refactoring; fix renaming opened files
Add ability to open file by pressing Enter key in 'Project Explorer'
Fix #IDEUI-209 icon cannot be update on parts

Uniformize icon handling on tab between editor and other parts and fix
the icon refreshing bug. Some little clean-up in CSS too.
Fix #IDEUI-194 add status icon on runner tab

Add a status icon showing the current status of running runner on the
runner tab.
IDEX-1174
IDEX-1174
IDEX-1174
Merge branch 'master' of github.com:codenvy/ide
Merge pull request #182 from stephanedaviet/IDEUI-194

Fix #IDEUI-194 add status icon on runner tab
Fix missing header on RunnerStatus