simplified network map function
finished the reimbursement parts
added new settings for reimbursement
added commands to get batches and start reimbursement
removed py~ files from the commit
added migrations for reimbursement
Merge branch 'master' of github.com:dimagi/WBNigeria

Conflicts:
	aremind/apps/reimbursement/app.py~
	aremind/apps/reimbursement/models.py~
	aremind/apps/reimbursement/views.py~