flash message on sign in page
conflicts remove in /sessions/new.html.haml
Merge pull request #341 from vaibhavcisin274/prachi

Prachi
Merge pull request #342 from vaibhavcisin274/manish

Manish
add validation
Merge branch 'master' of github.com:vaibhavcisin274/invoice-project into vaibhav
Merge pull request #343 from vaibhavcisin274/vaibhav

Vaibhav
push on final
remove conflits
Merge pull request #344 from vaibhavcisin274/anshul

Anshul
convart html to haml_application_layout