DEV-41358 DEV-41361: Added support for new SLAPP URLs, needed for the

new Search web pages. These are:

secondlife:///app/worldmap/{NAME}/{COORDS}
  Show the given coordinate on the World Map
secondlife:///app/agent/{UUID}/pay
  Pay the specified Resident
secondlife:///app/agent/{UUID}/im
  IM the specified Resident
secondlife:///app/agent/{UUID}/requestfriend
  Request friendship of the specificed Resident
secondlife:///app/agent/{UUID}/offerteleport
  Offer to Teleport the specified Resident
secondlife:///app/agent/{UUID}/mute
  Mute/Block Resident
secondlife:///app/agent/{UUID}/unmute
  Unmute/Unblock Resident