Update and add assets [cleanup]
Add a ViewPostActivity [cleanup]

- Add a new ViewPostActivity. Move the example logic of passing data through an intent to this Activity to keep the blog app principles in line.
Change CreateBlogActivity to CreatePostActivity

- Add a form to create a new blog post. This demonstrates how you might use a LinearLayout.
- Add necessary strings to strings.xml (as a reminder, this is for the sake of internationalization).
- Change the name to better reflect the activity function.
Change and add buttons to home screen [session4]

- Add a new button to go to ViewPostActivity
- Add/change the button to go create a new post
Merge pull request #1 from loeschg/session-4-ui

Session 4 - Create new blog post (UI)