added core files for switchbox
Added chosen for multi-selects
Refactored code out of selects into general use functions
fixed url path for chosen sprites;
Refactored a few general functions from item edit view into utilities
Added categories to items
Fixed empty array bug by putting an empty string in the array # reason number #757 for ditching rails
Removed CATEGORIES and GENDER constants
Added collections to item json
Adjusted optionsForSelect to handle multidim array matches
Merge pull request #4 from m3talsmith/master

Various item related changes