Merge pull request #124 from Lrmanfre/bugfix/various-bugfixes

Fix/User can only see own posts
Fix/Typo in seed data
Fix/Direct user to trip view of all posts after creating a new post
Fix/Remove inactive 'Add Location' button
Feature/Posts displayed by order of creation
Feature/Placeholder text in input fields more informative
Merge branch 'master' of https://github.com/spring-peepers-2014/TravelBlog