Instances Administration: Projects

[x] Turn on, or turn off projects
[ ] ~~Arbitrary organization of the Hackdash projects (for showcase)~~ moved to #73
[x] Ability to “close” an instance so no one else will be able to upload or join projects.
[x] Export csv: [Nombre][Usuario Twitter][Mail][Proyecto][Contributor][Hackdash instance][Status]
[x] Edition of Instance Title, Description and Link
[x] Fix redirect after create a project (or cancel an edit)
[x] Fix sort inside an instance
[x] Avoid get inside a project after clicking a link (like demo)
[x] check live state to be sure is not broken
[x] add msg "Closed" to create project button *like a title -> if user not logged in add a Login to Join/follow
[x] add Search under Hackdash logo as a title for search projects
[x] set color of links for edition of dashboard into color white
[x] add char limit of 140 char to description and max of 20 for title

impronunciable / hackdash