Merge pull request #59 from vaibhavcisin274/vaibhav

task #45#46#48#51 vaibhav
changes client index page #vaibhav
add ajax to invoice module
Merge pull request #60 from vaibhavcisin274/sivanand

add ajax to invoice module
Ticket #61 vaibhav
Merge branch 'master' of github.com:vaibhavcisin274/invoice-project