Merge pull request #15 from jeesong/master

Fixed routing for pins
Merge pull request #17 from jeesong/master

fixed adding pins
Merge pull request #18 from jeesong/master

Fixed the navigation links throughout the app
adding text_pins, halfway done
Can add a user to a board
text_pins working
Merge pull request #19 from laurenbenichou/shareable_boards

Can add a user to a board
boards can be deleted after reloading the page
fixed merge conflicts
can delete boards without reloaded
Merge pull request #21 from laurenbenichou/shareable_boards

Shareable boards
Added comments to text posts