add notice in README that this is QC3+
upgrade to QC3 and Rails 4
add pry and pry-remote for dev and test
add page to see db locks for a process id
make the null show last when sorting
change db_locks page to show with more stuff
explicitly use postgres 9.3
bump to Ruby 2.1.2
add new known column as part of QC3 upgrade
remove search ability if args is a JSON column
fix some specs

Those are due to the fact some columns are now not nullable in
QueueClassic 3.
fix indentation
add locked_by column in the job list
remove output of the job's attributes

oops…:dancers:
fix dummy-not-later app
require twitter-bootstrap-rails
Merge pull request #23 from rainforestapp/qc3-rails-4-and-moar

upgrade QC + Rails 4 + db lock page + NULLS LAST when sorting