Change some json endpoints to use .json extension and rabl
Modified the link to resend the confirmation instructions on home page. Now when user click on this link, a new confirmation email will be sent to the user.

refs #1413
/users/id/edit Created confirm function
Changed the translate of confirm message
fix the new translate, started working on manage/users page
Fixed some translates
Fixed icon_confirm

icon_confirm had a wrong path to the translate title
Created a new def icon from the library font awesome
Removed a comment line

All working :)
removed a blank space and a wrong file
removed a blank line
Removed blank lines
Merge remote-tracking branch 'origin/bug1414'
More information on spaces#index.json and spaces#show.json

Filled the attributes that were being set as nil.

PR #58
refs #1414
Some documentation for recent activities. refs #1418
Some docs for spaces
Extract recent activity code from user to RecentActivity
Update vpim library and make vcard work again with and without js enabled

Conflicts:
	app/controllers/profiles_controller.rb
created the test of confirm action

The test affirms that the action will confirm an user,
i didn't created a test to demonstrate that the action does nothing if the user
is already confirmed because the icon does not appear if the user is confirmed
More tests for vcard and some corrections