Merge pull request #48 from chorus-frogs-2014/angular_plus_2

Added ability to sort by newsrank and publish date
modified styles
Merge pull request #49 from chorus-frogs-2014/angular_plus_2

Search check boxes add and remove to array of feeds
Merge pull request #50 from chorus-frogs-2014/angular_plus_2

created function to add feeds from search
Merged previous changes
Changed calculated_rank to decimal in db migration
Sets default scores to 50th percentile in case of nil values
search feeds
merged styles and ng
Merge pull request #52 from chorus-frogs-2014/stylesheets

Stylesheets
Merge pull request #51 from chorus-frogs-2014/angular_plus_2

posts now show age in minutes
Final score complete with modified time decay
Merge pull request #53 from chorus-frogs-2014/scoring2

Scoring2
merge into master