Merge pull request #9 from Dawenster/staging

Add Stripe payment
make "Reward" title singular if there is only one reward
implement rewards_ordered_by_lowest
fix for non-logged in users on FAQ
add sleep 1 to premium_spec
create hours_entries table / model
add routes and controller for hours_entries
remove edit/update methods from hours_entry controller; add destroy method
fix bug in hours_entry.rb validation; add email validation
add hours_entries views
add hours_entry admin mailer
upgrade rails to 4.0.4
add reward_id and verified columns to hours_entries
minor updates to hours_entries wording
use pluralize string method
reward has_one hours_entry
earned/used scopes for hours_entry
implement hours submission
add hours log link to nav dropdowns
aesthetic fix to hours_entries index view