only run contest if promo exists, default number of winners to 1
new migration adds default (1) on promotion num_winners
remove if promo check from contest task
set initialize_on_precompile to false in application.rb, precompiled assets locally
changed default timezone
configured tasks to work with heroku
modified list_hashtags to ignore expired promos
set up heroku-api gem
changed minute step
precompiled assets
Prevent entry creation for expired promotions

Responder now responds with url link to promotion
DB Monitor now restarts twitter monitor if there is a new winner (aka promo has ended)
Promotion now sets its url before create
Merge pull request #23 from tk-kowal/fix-contest-worker

Fix contest worker