Added Micropost model with User associations. Lesson 11
Micropost validations. Lesson 11
Added show microposts with pagination. Lesson 11
Showing microposts count and generate micropost sample data. Lesson 11
Added user's micropost input form  with  error messages partial (generic). Lesson 11
Added microposts summary box. Lesson 11
Added micropost feed. Lesson 11.
Completed micropost delete and integration test. End of Lesson 11.