removed unnecessary stylesand made code optimizations
only home page and master brunch cleanup code made ,removed unnecessary css and html code , ather parts will come in separate pull requests
small fix in positioning menu items
Added migrations and models for Quiz DataBase
just fixed notation
few styles fixed
reverted schema and DB files from master
Added model and  migration for Comment class
Added Quiz status enumeration
changed status enum to old-ruby syntax, added Quiz delete and queryAll methods
fixed syntax error
Merge pull request #17 from SoftServeUniversity/HomePageNav

Home page nav
Merge pull request #28 from SoftServeUniversity/AssessmentsModelsMigrationsSeeds

Assessments models,  migrations and seeds for Quiz
modified seeds
afted db
temp commit
[:wip] in progress