Libraries modernization (holds)

Update the Libraries holds classes for ARC and subscripting.

Signed-off-by: Blake Skinner <bskinner@mit.edu>
NOP code removal

Signed-off-by: Blake Skinner <bskinner@mit.edu>
This is not a view controller and these methods are useless.

Signed-off-by: Blake Skinner <bskinner@mit.edu>
ARC & Objective-C modernization for the Libraries loan tab classes

Signed-off-by: Blake Skinner <bskinner@mit.edu>
Libraries modernization (Your Account)

Turn on ARC, switch to subscripting and some general cleanup in the Libraries account classes

Signed-off-by: Blake Skinner <bskinner@mit.edu>
Libraries modernization (Your Account)

Switch to ARC, subscripting and general cleanup to the Libraries module and root view controller

Signed-off-by: Blake Skinner <bskinner@mit.edu>