[#501] Solve the problem that when the number of the pending members exceed 10, and display all pending members in project members.
[#503]Create a cron job for cleanning invitations which is time out
[#970]Cancle the selection for project and replace it with span
[#1710] add a cancel button.
[#1749] allow login in with email address or prefix of email address.
[#1843] adjust the the sidebar of search page, make all the projects and individual project at the same level.
[#1849] modify the login page.
[#760] Provide textile to create or edit issues.
[#503]Add a scripts for cleaning invitations which are time out
[#1850]Cancle the limit of number for @ association
[#1715] add home page
[#1009] Project creator can delete project members.
[#1009] Fix Bug of push notifications.
[#1416] add a fucntion that mark notifications as read on the popover dialog.
[#586] modified the global notification
[#586] Modified the color, position of global notification bar and removed the authorization of description when editing the content of notification. Additionally, added textilizable attribute to global notification
[#855]Upload file from clipboard for [Ctrl + V]
[#1930] Refatored deployment scripts
[#1708] can change task color
[#1813] add placeholder for drag drop event