move to symbols for some bill fields
Update README.md
reorganize file structure

This commit re-organizes to the following conventions:
- create a `config` folder to hold sample data and database information
- move base.rb to the root directory, simplifying load order
move to permissions based ACL

A permissions based ACL greatly simplifies and reduces code because it moves a lot
of the data into the database, as a Role entry. The controllers now only require
specifying what privileges can perform different actions.

Also removed Mongoid roles, since it's redundant to check this twice.
create special_privileges module
implement individual bill submission system
move bill folder to bills for naming consistency
create Users controller for managing delegates
remove output statements from rake files
fix configuration on flash alerts
Merge branch 'master' of github.com:digitxp/yagtrackr into acl

Conflicts:
	models/nj/nj_bill.rb