Xedit toolbox autohiding. #tsk62

Clicking the top of the toolbox collapses the panel.
Hovering over the collapsed panel expand it and collapses again when
the mouse leave the toolbox.
Clicking again the top of the panel turn off the autohiding behaviuor.
Merge branch 'master' into feature/toolbox-autohide
Merge branch 'feature/tree-auto-hide' into feature/toolbox-autohide
Minor issue
Merge branch 'master' into feature/toolbox-autohide
Merge branch 'feature/tree-auto-hide'
Minor issues
Added icon for editor toolbox autohide.

Created a SASS file for kupustyles
Merge branch 'master' into feature/toolbox-autohide
Merge branch 'feature/toolbox-autohide'
Fixes cross browser issues with webfonts icons.
Minor xeditor toolbox style issue.
Added new icons and button styles.
Added grunt files.
Add sass cache and node modules to the ignore file
Minor style issue
Update grunt to watch for sass changes
Fix grunt file
Added Angular library.
Minor style issue