Show all posts by all users in list form
Displays the post title (linked to actual post), body of post, date, and author (linked to that user's profile) on the post/index page.
Show only the first 13 characters of post on the Index page
Users can click the title of the post to see entire post.
Put logic in domain layer,moved strings to messages file

ub-9

This fixes the problems noted: puts substring logic in domain layer, puts string literals into the messages.properties file, removes invalid html, uses HTML5 <article> tag. The timeline file has been deleted, because it was not being used. The index.gsp file is where the post listing occurs.
Add domain and controllers.

ub-9

This commit adds the controllers and domain classes needed to list the first lines of the post.
Add javadoc to abbrevText method

ub-9
Merge pull request #3 from osu-mist/feature/ub-9-list-post-previews

Feature/ub 9 list post previews