remove some gems which are currently not needed for man edition of corgi (calender and date handling gems) and add acts_as_taggable_on
replace custom tagging with acts_as_taggable_on gem, since this will be tagging heavy and i think the gem will allow for normalization
implement tagging on users, add route for user index, make sure we're loading the user in params for users#show since these are meant to be public profiles
add basic users#index