added agenda model and Philly city council import rake task from monogo collection
removed slug field, can use agenda_url as unique identifier
handling more complicated Minutes object (minutes fulltext scrape implemented in legistar-scrape)
removed unused to_slug function from city_council.rake
renamed Agenda to Meeting, moved mongo import to load_from_apis_for_jurisdiction method in model
added meeting_spec, ensuring presence of name, date, municipality
moving scraped_local_gov to private methond
merge
properly setting private methods for meeting model
stubbed out embedded documents for agenda and minutes
renamed minutes and agenda to reflect as subdocument of meeting, saving as subdocuments on import
added agenda and minutes accessors to meeting model, spec'd out meeting_minutes and meeting_agenda
renamed meeting object for import
Add pagination for upper and lower chamber people

Pagination loading can be problematic still due to performance &
perhaps other issues. Create separate issues for bugs or
further performance improvements.

Closes #26
created spec for Meeting .load_from_api_for_jurisdiction
Fix person_id being dropped when zipcode entered

Also added better integration testing to cover more
functionality.

Closes #27
Merging @derekeder's work into topic branch - WIP

Refactoring towards #6
Finish test of loading meetings

Still refactoring for #6.
Merge branch 'master' into meeting_work

* master:
  Fix person_id being dropped when zipcode entered
  Add pagination for upper and lower chamber people
Specify security patched redis-namespace gem

See http://blog.steveklabnik.com/posts/2013-08-03-redis-namespace-1-3-1--security-release