add many to many for tags and plates
add has_many_and_belongs_to relationship for tags and plates
add or create tags when creating plates
add unique constraint on plate tag table
add chosen rails for tagging
add compass for Rails 4 chosen support, and add chosen to tag selection
modify formatting for tags
remove chosen and add jquery tokeninput
allow search for tags by adding json index route for tags
add ability to create new tags
add tag display on show view
add ability to save edited tags
add ability to show and edit tags
avoid conflicts with create plate when tagging
add formatting for tag box
stub profile_pic and instagram_url to avoid calls to Instagram API while testing
resolved merge conflict with tagging
resolving more merge conflicts