Teaching PR#1: Implement devise and has_many relationship#2

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toppsdown wants to merge 2 commits intosave_commit_0c4713e_for_PRfrom implement_devise

+749-49

Commits on Apr 1, 2016

install devise and set up user model, and registration views
Ethan Puzarne
committed
post now belongs to user. fix some styling
Ethan Puzarne
committed