Remove debugger gem

It wouldn't install under Ruby 2.1.2, and we weren't using it anyway.
Add Rake task to load altnames.
Add altname data and include load in deploy-tasks.
Hardcode alternate-name CSV file path.
Remove superfluous* error-checks from load_altnames

* /me crosses fingers...
Fix typo in altname CSV
Make load altnames task idempotent.
Remove alternate names for crops without IDs.
Basic follower relationship
Added follow/unfollow buttons
Fixed/improved method in member model
Delete unused views, add feature tests
Added model tests for follows
Remove dependent detroy as this wipes out both users. Woops.
Fixed comment + code style
Renamed member_id column in Follow table to follower_id. Made necessary modifications to models and tests.
Renamed get_follow_id to get_follow as it does not return id. Also added unit tests for the new methods in the member model.
Added more model tests for following behaviour
Break up tests into different scenarios. Defined cancan ability for follows and updated member profile view
Moved number of follows/followers under activity and added pagination.