add uniqueness validation on river favorites
Fixes header loggged-in styling
Merge branch 'master' into styles
Merge pull request #17 from bwinterling/favorite-uniqueness

add uniqueness validation on river favorites
Merge pull request #19 from bwinterling/styles

Styles updates to header
move river favorites into partials
Adds icons for favorite/unfavorite
Merge pull request #20 from bwinterling/favorite-partial

move river favorites into partials
Merge branch 'master' into styles
Adds icon for river un-favoriting
Merge pull request #21 from bwinterling/styles

Styles for favoriting and unfavoriting rivers
WIP, spec for river pagination
Merge branch 'master' into need-for-speed
WIP, add Next pagination to homepage, fixing regressions