refactor Project test
Merge branch 'master' of https://github.com/buildbuild/buildbuild
update Project
Add team field validation code about contact number & website url
modifying invalid long length variables. (ex : "aaa....a"    to     "a" * numbers)
Resolve m2m relationship in waitList & add default test file for wait list
Merge branch 'feature/Team_Apply' of https://github.com/wikibootup/buildbuild into feature/Team_Apply

Conflicts:
	buildbuild/teams/tests/test_team_manager.py
refactor Project model & test
add test code for Wait List
add validation code on get_user (email)
Add WaitList Manager, and it's method (append to list, get list)
Add delete code for WaitList & divide method to check target is in WaitList
add Test code for delete from Wait List
update project model : project must have name
Merge pull request #20 from o8151814/master

update project models & test ( but need more improvements )
Merge pull request #21 from dobestan/develop

[Sprint #4] Integrate with Celery
Merge pull request #22 from BOBTommy/feature/Team_Apply

[Sprint 4] WaitList Test code & it's implementation code
added url patterns
added url href 'signup' that goes to 'SignUp'
added sign up form