Added post class
Added user class
Added spec_helper form Josh's repo
Added post_spec
Addedu user_spec
Addef progress formater to spec_helper
Implemented initialize method
added posts array
Implemented initialize method
Implemented initialize method with multiple parameters
Added tests for post class initialize
Changed variable name
Implemented add_post method
Implemented add_post method
Implemented tests for add_post
Added extra test for post initializer
Implemented posts method
Implemented tests for posts method
Implemented find_post_by_title
Implemented summary methods and tests