cpu tasks in graphics options
fix, forgot in prev commit
DF-1665 landscape lods as separate flag
DF-1687 changed in correspondance with code style agreements
Merge branch 'cpu_flags' into to_master
[DF-1784] is fixed.
Merge remote-tracking branch 'origin/to_master' into DAVA_to_master
Merge branch 'DAVA_to_master' into DAVA_to_master_qa