Merge pull request #417 from vaibhavcisin274/vaibhav

solve estimate report calculation problem 21-sep
worked on reminder mail and show on calendar
Merge branch 'master' of github.com:vaibhavcisin274/invoice-project into anshul
Merge pull request #418 from vaibhavcisin274/anshul

Anshul
expense/project convert invoice only show product/service complete 21-sep
Merge branch 'master' of github.com:vaibhavcisin274/invoice-project into vaibhav