tweak CharacterCollection class>>findFirstInString:inSet:startingAt: in support of Zinc
restore CharacterCollection class>>findFirstInString:inSet:startingAt:
bugfix for Issue #21:

- add object log entries to default action for
  GsInteractions
- add ObjectLogEntry class>>interaction,
  ObjectLogEntry class>>interaction:, and
  ObjectLogEntry class>>interaction:object: for
  easy filtering out/in of interactions
- GsExploreInteraction added for #explore message...
  really only needed for GemTools at the moment ...
  tODE treats explore like inspect
- GsInformInteraction added so that default response
  for an inform: message (that allows for debugging
  of Warning) can be differentiated from confirm:
bugfix for Issue #21 (for GemStone 2.4.x):

- add object log entries to default action for
  GsInteractions
- add ObjectLogEntry class>>interaction,
  ObjectLogEntry class>>interaction:, and
  ObjectLogEntry class>>interaction:object: for
  easy filtering out/in of interactions
- GsExploreInteraction added for #explore message...
  really only needed for GemTools at the moment ...
  tODE treats explore like inspect
- GsInformInteraction added so that default response
  for an inform: message (that allows for debugging
  of Warning) can be differentiated from confirm:
Merge branch 'dev'