added runtests
added poll list test
added poll list api view
added pagination serializer
change test so that we can see next field
added first and last links
added self link and embedded field
fix self page link
added NextPageField and PreviousPageField
return None for when there's no result for first and last page
added test for when there's only one page
added test for when there's no next page
added tests for when at the page that has both prev and next page
remove probably unused code in HALPaginationSerializer
changed version
Merge remote-tracking branch 'origin/master'

Conflicts:
	drf_hal_project/settings/base.py
	sample_app/poll_urls.py