Merge pull request #9 from annacruz/master

New avatar layout
change avatars in team
order projects in home
refatoring in ajax items backlog page
can update thumbnail of projects
fix position of thumbnail projects
change way upload image
no hover on image in project backlog
fix bug in firefox upload image
change how last projects works in header
new button to create a projects
stories, definition of readys, tasks and comments in Sprints page
removed unnecessary variables
fix bug on call realtime
search in sprints page
search modifications
fix bug preventDefault in link on sprints comments
page login/register
fix bug search in sprints page
send email to a new user and change password