Issue # 230 Adding university=>(lecturer,student,TA), degree=>(TA), share=>(student), deleting unwanted files ,updating seeds
Issue #252 adding title and img strings to posts table
Database modifications
reloading GemFile
Merge branch 'master' into dev_database

Conflicts:
	tutor/db/seeds.rb
fixing seeds file after removing attrebutes from some tables
Merge pull request #249 from alaashafaee/dev_database

Issue #230 Adding university=>(lecturer,student,TA), degree=>(TA)