added option to cursor() to yeild "pages" - ie: iterators of items for each page returned by twitter
	modified:   api.py
fixed recursive part for returning cursor() pages
	modified:   api.py
Merge remote-tracking branch 'upstream/master' into cursor-pages
fixed paramater naming as per PEP8
Merge branch 'master' of github.com:ryanmcgrath/twython into cursor-pages

Conflicts:
	twython/api.py
Merge pull request #282 from drevicko/cursor-pages

added option to cursor() to yeild "page" - ie: iterators over each page returned by twitter