fix cache to include self.id
redo available callouts caching
Merge branch 'cache-frozen-script' of github.com:code-dot-org/code-dot-org into cache-frozen-script
redo available callouts caching
Merge branch 'cache-frozen-script' of github.com:code-dot-org/code-dot-org into cache-frozen-script
Merge pull request #763 from code-dot-org/cache-frozen-script

Cache callouts and stage_or_game_total