[CLC-3277] Textooks: better labels and stacking
[CLC-3300] Textbook feeds broken on dev
Merge pull request #2148 from haroonrasheed333/CLC-3300

[CLC-3300] Textbook feeds broken on dev
Merge pull request #2142 from haroonrasheed333/CLC-3277a

[CLC-3277] Textooks: better labels and stacking
CLC-3223: Fin Aid messages - supporting 2 aid years in the data stream

Get Myfinaid feeds for the current and upcoming year.

MyFinaidProxy
- now requires a term_year parameter in addition to the user_id.
- changed the cache key to include the uid+term_year.
- since there are now multiple vcr recordings, we are now matching the path
  considering the aidYear parameter, which requires telling VCR to ignore
  the :token, :app_id, and :app_key parameters

MyFinaid Model
- The current term year no longer comes from the settings file. It is detected automatically, based on the current month.
- The append! method now requests and processes the current and upcoming term years.
- Adding the human readable term_year (2012-2013) to each finaid entry in the activity for sanity purposes, although this officially belongs to another ticket (CLC-2110)

Settings and tests
- Added a vcr recording for 2014.  Now this recording contains 2 years and will be matched on the path with the aidYear parameter, excluding private parameters
- Added Settings.myfinaid_proxy.test_term_year for faking out the current_term_year in tests and when in fake mode
- Updated the my_fin_aid_spec expectations to anticipate the new number of myfinaid messages retrieved with the current and next term year feeds merged together.

To-do:
- Resolve duplicates: many entries can be considered duplicates between the two terms
- Update dummy json for activities
- Check code thus far with fellow developers, especially the current_term_year method of Myfinaid.rb. This is Ok by Chris as a first implementation
Merge pull request #2149 from chikoon/CLC-3223-myfinaid-support-2-term-years

CLC-3223: Fin Aid messages - supporting 2 aid years in the data stream
[CLC-3253] CFV: $ symbol can become detached from past due amount when viewport is resized
Merge pull request #2151 from haroonrasheed333/CLC-3253

[CLC-3253] CFV: $ symbol can become detached from past due amount when viewport is resized
CLC-3194 Use pundit to authorize cache clearing
CLC-3194 pundit authorization for CanvasUserProvisionController
CLC-3194 pundit auth for MyCampusLinksController
CLC-3194 pundit auth for MyEventsController
CLC-3194 pundit auth for RefreshLoggingController
CLC-3194 pundit auth for RoutesListController
CLC-3194 pundit auth framework for act-as system
CLC-3194 Simplify UserAuthPolicy constructor
CLC-3194 Spreading pundit auth into the model layer
CLC-3194 pundit auth for rails_admin
CLC-3194 Clarify future functionality
CLC-3194 Improve design: UserAuth has-a policy, instead of the reverse