add underscore
alpha pass at subjects editing, includes addition of underscore and poltgerist gems

test new form modal with poltergeist

first pass at functional lae category subjects feature. Adds poltergeist phantomjs gem for javascript browser testing
Merge pull request #204 from pulibrary/lae_subjects_rebased

Lae Categories/Subjects Features
freeze capistrano at 3.1
Merge pull request #206 from pulibrary/capistrano_gem_lock

freeze capistrano at 3.1
upgrade to hydra 6.2 and Rails 4.1

remove deprecation warnings. Helpers removed are stripped from blacklight 5.0
Merge pull request #211 from pulibrary/hydra_6_2

upgrade to hydra 6.2 and Rails 4.1
reconciled gemfile.lock
Adds LAE Image queuing