update the requirements.txt
add contact model; add login_required/tgtcell_operatable wraps; fix typo
fix tgt_operatable decorator
code style improvement
Merge pull request #4 from lisztli/code-styling

code style improvement
fix #2, tgtcell_operatable decorator
Merge pull request #6 from lisztli/issue-2

fix #2, tgtcell_operatable decorator
Merge branch 'master' into reset-password

Conflicts:
	user/tests.py
	user/user_api.py