Merge pull request #20 from nealcpeters/testing

Testing
added routes for contents and all three types
Merge branch 'master' of https://github.com/nealcpeters/infobytes into models
added CRUD for subchapter
Merge pull request #21 from nealcpeters/models

Models
add passing tests for tobics, subtopics and turoials
added validations and corresponding tests for subtopics
added paragraphs and contents controller
Merge pull request #23 from nealcpeters/models

added paragraphs and contents controller
Merge branch 'master' of https://github.com/nealcpeters/infobytes into testing
changed name sub_chapter spec, edited chapter spec test
Merge pull request #22 from nealcpeters/testing

add passing tests for tobics, subtopics and turoials
Merge branch 'master' into styling