Feature/activity feed

Feature/ActivityFeed
1. Created ActionReport Model
2. Implement save function to Project,Ticket and Comment models
3. When something changes in Project,tTicket,Comment models an ActionReport model is created with the appropriate message.
4. This branch also have the addticket functionality: No button yet but can access the page by manually typing the url.(just add addticket after ...user/)
5. Need to do: need to fix project.html so tickets will show up in project view.(on jon's comment "<!-- Todo: This if might break due to some changes Juan made -->". *Possible fix: just change the if statements to match the ticket_statuss dictionary to Queued, In Progress, Testing, Completed...
6. I might create a new branch to fix that.