Test commit
Merge pull request #539 from Kirill-NiK/master

перерисовка линков.
overview of QReal architecture
fix property brakeMode
Merge pull request #624 from ethelle/master

property "brakeMode" is removed
fix loading default icons
fix loading default icons
Merge pull request #625 from ethelle/master

fix loading default icons
Fixed grid switching
Fixed hanging when saving settings
Fixed #543
Proceeding fixing hanging on linux
Fixed hanging
Fixed 2Model wall drag overlapping
Fixed 2D model wall refusing to start dragging near the robot
Fixed gentle fantom absence error reporting
Merge branch 'master' of github.com:qreal/qreal into robots

Conflicts:
	qrkernel/settingsDefaultValues
Fix Align to Grid
Merge pull request #627 from ethelle/master

Fix align to grid
Merge pull request #626 from dvvrd/robots

Набор фиксов для QReal::Robots #1