Update 3.1.2

Added detecting of 3 new small achievements
Fix. When getting back from stage editor to stage pack view currently edited stage is selected
Improvement. In editor when item is selected toolbox is switched to last used draw operation
Calibrated volume of distanced sounds
Fix. Now adding points is blocked after Moose Death.
Fix. Now user can enter polish stage name (when language set to polish)
Improvement. User can use move controls to change language in language view
Pressing F2 toggles fixed frames time.
When testing stage and stage has time set, time is enabled.