added Communication section on README.md
updated README.md
updated IRC section of readme
Merge pull request #34 from jessehorne/communication

Added IRC section on communication branch
Added RSpec to Gemfile
Fix deprecation warning on Score default scope
Merge pull request #38 from mzemel/fix_deprecation_warning

Fix deprecation warning on Score default scope
tos
teacher page optimize
update copy on sign-up
staging environment
lessons page
Terms of Service
Merge branch 'add_rspec' of git://github.com/mzemel/quill into mzemel-add_rspec

Conflicts:
	Gemfile
Optimize database queries
Merge pull request #42 from mzemel/optimize_queries

Optimize database queries
fixes for lessons
Exclude unicorn from production
Update .travis.yml to use rbx not rbx-19mode

See travis-ci/travis-ci#1641
woops