Added handling for item flags when loading from json files.
Fixed jsonized items not showing up in wish menu. Not the best fix - better alternatives appreciated.
Merge branch 'master' into json-guns
Add no-arg it_gun constructor, fix a couple silly compile errors
Updated Makefile to set minimum OS X version to 10.6
Merge pull request #765 from InfernoZeus/mac-compile-fix

Updated Makefile to set minimum OS X version to 10.6
Move skill initialization to happen inside the game's init method
Couple more item factory fixes
Merge pull request #764 from GlyphGryph/flags_to_item_factory

Flags to item factory
Merge branch 'master' into json-guns
Move all gun definitions to JSON

Also added a "range" field to the gun definitions, since I was touching them all anyway. Currently set to 0 for all guns, and unused, but lays the groundwork for making arrow range be mostly determined by the bow rather than the arrow.