Merge pull request #170 from COMP231-S62G1/Release02

Release02
Server interface for Register

Close #116
Merge pull request #171 from COMP231-S62G1/Release03

Server interface for Register
Merge branch 'Release02'

* Release02:
  Change encryption method to MD5 from SHA1
  parse user registration
  send request to server
change Register.php file to use dbConnector