write a rake verification task
allow yeller clients to be configured with multiple blocks
if you call Yeller::Rack.configure multiple times, call all the blocks in order
yeller gem gets autorequired from bundler now
better inspect for yeller clients
autorequire rails stuff if rails is here
fix verification rake task
rename yeller example rails app folder
better error messages out of the yeller verification task
even better error message for missing api tokens
bump version number
add note about rake task to README
fix bug: show client not enabled error if the client is disabled, not the other way around
bump version number
slightly better log message when yeller runs successfully
change test rake url - rails 4.1.4 doesn't let you mutate root path after setting it
bump version number
add verification log to rails integration

- logs every potential action that might affect an error not getting
  sent to the yeller api, so the rake verification task can print it
bump version number
don't explicitly require rails