Merge pull request #29 from brandonkwong/dalton

slightly updated categories
Added item tags to tag query for items
Merge pull request #30 from brandonkwong/api

Added item tags to tag query for items
Cleaned up javascripts and working on tag query for items formatting
Merge pull request #31 from brandonkwong/api

Cleaned up javascripts and working on tag query for items formatting
Categories destroy working
collections working, user can add items to respective collection