added question_tags join table
Renamed the QuestionTag model to be singular, updated schema so that Tags no longer had a question_id
Users can upload a profile picture. A silhouette placeholder was created and added to the assets/images directory. The placeholder will display on the user show page if they did not upload their own.
Merge pull request #25 from eisenachalex/images

added profile pictures
refactored layout view and moved sign up link so it only displays when you're logged out
Added tag input to creating new posts and displaying multiple new tag objects
Merge pull request #26 from eisenachalex/navbar

refactored layout view
Renamed the QuestionTag model to be singular, updated schema so that Tags no longer had a question_id
Added tag input to creating new posts and displaying multiple new tag objects
db stuff
fixed merge conflicts
fixed mulitple tag problem so a new tag object isn't created if it already exists
Merge pull request #23 from eisenachalex/reworking_tags_relationships

WIP: added question_tags join table
don't worry about it
fixed merge conflict