Sign-up User model validation
Merge branch 'master' of github.com:vaibhavcisin274/invoice-project into prachi
Merge pull request #322 from vaibhavcisin274/vaibhav

cahnges in production file
fix issue 29-aug
remove conflicts 29-aug
Merge pull request #323 from vaibhavcisin274/anshul

Anshul
Merge pull request #324 from vaibhavcisin274/prachi

Prachi
solve heroku fa login error1
solve heroku fa login error-2
heroku error solve -2#30-Aug
heroku error solve -3#30-Aug
heroku error solve -43#30-Aug
heroku error solve -test#30-Aug
--heroku error solve -finally solve #30-Aug--
--heroku error solve -finally solve #30-Aug--
after login process change