Few command improvements
Forgot safety check
checkLineOfSight now checks if obj is in inventory
checkLOS checks if obj1 is container of obj2
Equipment cmd checks
Fixed null exception
Temporary fix for certain commands being registered as combat commands even though the are not combat commands
Fixed #396: Environmental Purge not granting.
Able to create a chat room now

Work still needs to be done on joining the rooms. However, you can
create custom rooms.
Preliminary housing
Changes to housing, added real player lot count to character sheet
Added no-build checks when placing structures
Fixed combat commands and added a better check for combat commands
Merge remote-tracking branch 'upstream/master'