Feature 5 created

I created a feature and steps for inviting user to the team
test feature deleted
class for team created
attributes applied to the team class
DB context moved to DAL
DAL updated with the team class
migration for teams added
basic list of teams created
id for team generated
tests to copy teams from mocks to database
queriable extensions added
unit tests for including the properties
Merge pull request #8 from Altal/local.sergey

Local.sergey