Improved multi threading behavior of image allocation. This fixes occasional NREs due to race conditions. (MP2-370)
Fixed range calculation for children to restore (MP2-369)
Merge branch 'dev' into EXP_WiP
Merge branch 'FIX_ImageSources' into EXP_WiP
Fixed storing the correct line number (MP2-371)
Fixed storing of "HasFocus", on screen changes the property was cleared before storing it (MP2-371)
Merge branch 'dev' into EXP_WiP