rnd-20080206-2-src

rnd-20080206-2-src
* added optional initial inventory for players (pre-collected elements)
* added change page actions "set player inventory" and "set CE artwork"
* added recognition of "player" parameter on change pages when player
  actions are defined, but no trigger player in corresponding condition
  (this resulted in actions that only affected the first player before)
* fixed bug with change actions being executed for newly created custom
  elements resulting from custom element changes, when the intention was
  only to check for change actions for the previous custom element