SettingsManager stores toolbars settings
only isVisisble, for now
Changes in toolbars visibility are saved in config file
#457
Changing the toolbar visibility by program logic mustn't cause to config changing
Submenu for toolbars visibility management. 
Using enable/disable instead of visible/invisible for exec toolbar and orientation action
Toolbars names changed
Merge branch 'master' of https://github.com/paralect/robomongo into issue-457

Conflicts:
	src/robomongo/core/settings/SettingsManager.cpp
Merge pull request #595 from VBelozyorov/issue-457

Changes in toolbars visibility are saved in config file