Vacancy unit tests
Added salary columns to Vacancies
added additional unit tests for vacancy model validation
typos fixes
deleted custom deadline validator
vacancy custom validator removal again
added type attribute in User model
added job_duration field on vacancy with migration
removed require line from vacancy unit test
vacancy test and fixture fixes
added user_type
Created Session helper methods and controller
validations made in user model
added routes line for signin signup
validations made in user model
User testing done
lil fix in session helper
another lil fix in session helper
Merge branch 'development' of https://deveo.com/haaga_helia/projects/thunderous/repositories/git/jobly into loginSystem
create method users profile controller and polymorphic relation fix