Merge branch 'matt-develop'
Assign customer_id to new anonymous users

This was resulting in an error because the User model requires a customer_id to be set on all User objects.
Merge pull request #14 from uwdreamproject/matt-develop

Multi-option attendance, dynamic rows and filters, scholarship merging, and activity log improvements
Merge pull request #15 from uwdreamproject/matt-develop

Fixes error when participant is deleted from college app
Merge pull request #19 from uwdreamproject/matt-develop

Adds scholarship merging and AJAX loading for participant lists
Merge pull request #20 from uwdreamproject/matt-develop

January 2014 updates - scholarships, mentor avatars, and weekly activity log improvements
Merge pull request #21 from uwdreamproject/matt-develop

Fixes scholarship excel and search bugs
Adds proper association for education levels
Allows program URL to be blank
Adds links to view stats for individual high schools easier
css fix
Adds fafsa_not_applicable and other_programs titles to excel export
Merge pull request #22 from uwdreamproject/matt-develop

Excel additions and filter additions
Limits stats to active AND official, and adds AJAX loading to all stat displays
Merge pull request #23 from uwdreamproject/matt-develop

Limits stats to active AND official, and adds AJAX loading to all stat displays
Doesn't load "all schools" stats unless user clicks link first
Merge pull request #24 from uwdreamproject/matt-develop

Doesn't load "all schools" stats unless user clicks link first
Fixes mentor avatar displaying crazy
Allows any enrolled user to edit scholarships
Customer scoping for mentor_signup views