Add public activity gem and bundle
Run activity feed migration
Add activites controller and view, update routes
Minor update
Add activity feeds for Reagent create, update and destroy
Add reagent-specific Activity feeds... seems to be ok
Update User show page to show personal activities, modify delete activity to not include name (not possible?) and update link CSS a bit
Update Instite info page to change the icon call, update link CSS to simplify across the board
Update User show a bit to remove repetition
Update spans for Users and reagents, looks better now
Update User show to show Username rather than 'you'