Update NEWS

This covers commits from 0.40.13-r1 to b81346
Merge pull request #374 from lethosor/0.40.14-update-news

Update NEWS
Update stonesense.
Update NEWS and CMakeLists for release.
Merge remote-tracking branch 'dfhack/develop' into develop
EventManager: properly deal with frame_counter getting reset.
modtools/item-trigger: fix equip/unequip bug and correct minor documentation error
Update NEWS.