added is_valid_email function
Merge pull request #9 from pkkup/master

added is_valid_email function
move is_valid_email to its separate module
Merge pull request #10 from pkkup/master

move is_valid_email to its separate module
use os.path.realpath
Merge pull request #11 from pkkup/master

use os.path.realpath
added google cloud messaging lib
Merge pull request #12 from pkkup/master

added google cloud messaging lib
remove references to pkkup in emails
beefed up accounts app
Merge pull request #13 from pkkup/master

beefed up accounts app
better accounts forms