updated abandon land code. Sets parcel name to "Abandoned Land <date>". Description gets set to "Land abandoned by <avname> on <date>" if owner abandons it. Gets set to "Land owned by <ownername> was abandoned by <UserWhoPressedBtn> on <date>" If you abandon group land, it sets to "Land owned by <groupname> (group) was abandoned by Kevin on <UserWhoPressedBtn>" Also modified the flags.
tweaked flags
tweaked land data
tweaked the GroupName error msg
Merge pull request #5 from keverw/master

Tweaked Abandon function