Add bill document (pdf) routes
Add bill document (text) routes

Conflicts:

	templates/bill.html
Merge branch 'master' of github.com:teampopong/pokr

Conflicts:
	templates/bill.html
Give useful message when conf file is outdated
Do not show menus on bill-text page
Exception handling when invalid args are given
Handle ORM data-type error
Fix a bug - exception handling scope
Show distribution of # of cosponsorships
Fix a bug in label position
Show rank (# of cosponsorships)
Update storage configurations

- Let PDF & texts have separate folders

Conflicts:

	views/bill.py
Change BASEDIR to BILLJSON_DIR in conf/storage.py
Fix a bug in caching cosponsorship distribution
Merge branch 'master' of github.com:teampopong/polidic
Fix buggy caching
Merge branch 'dev' of github.com:teampopong/pokr

Conflicts:
	templates/widgets/histogram.html
	views/person.py
Merge branch 'master' of github.com:teampopong/pokr

Conflicts:
	views/person.py
Update README and LICENSE
Fix insert_bill bug