Add button and dropdown to set status on multiple finaid applications

For #236
Remove unneeded import
Merge branch 'feature/236-finaid-bulk-status' into develop
CSV export of financial aid application data
Remember financial aid selections

When reviewing financial aid applications, if a user selects some applications
and performs a bulk action on them, keep the same applications selected when
they come back to the list page again.
Merge remote-tracking branch 'origin/develop' into staging
Fixes #238
add indentation for readability
updating to set better default and provide documentation for this constant
Make docs more explicit as to what default/invalid REGISTRATION_STATUS values do, and a tip on how to extend
fix typo
Merge pull request #241 from PyCon/feature/238-registration-status-configuration

[238] Configurable Registration Status
* Normalize FA App Url in email messages for both applicants and reviewers
* Update FA Review Detail page to redir to Edit for applicants
* Add basic tests for FA Review Detail page
* Update logic for failing unrelated test
change verbiage
update text, fix bad logic check
add markdown support to tutorial messages
account for users w/o speaker profiles
remove ridiculous redeundant truth assignment
Adding custom schedule templates to PyCon repo and adding new display, refs #245.
fix typo