added platinum

changed sand mine and glass trader etc to platinum mine. Also combined
diamond trader and platinum trader into same NPC (jeweller)
forgot the mission.sqm
Merged diamond trader and platinum trader into jewllers. One jewllers shop in each main city.

Merged diamond trader and platinum trader into jewllers. One jewllers
shop in each main city.
fixed a whole bunch of my mistakes

fixed a whole bunch of my mistakes. also started making ability to rob
jewellers
woops
finished adding ability to rob stores

tested, just need to add function to remaining npcs
Fixes #50 now a shop can only be robbed by one player withing 5 minutes
changed cool down time
And now the shop keepers are properly putting their hands up

... if I would have done my job properly this would have worked the
first time around :(
added in audible alarm (no sound file yet)
fixed error
fixed error
added alarm sound
fixed flip's screw up!
last fix
Merge remote-tracking branch 'origin/platinum'