fixed issue #16 : This is complete fix for Issue #16 , removed code redundancy for database
 connection adn used API to create databse connection , user id and
 password are not used in all files now , using single methoed for
 creating connection.

Signed-off-by: Ashish Namdev <ashish28.sirt@gmail.com>
Fixed Issue #17 : NullPointerExeption is not catched at many places while
using DbContainor.createConnection().

implemented Excpetion Handling for NullPointerException from
createConection API .

Signed-off-by: Ashish Namdev <ashish28.sirt@gmail.com>
fix for Issue #29 : Already Registered users shoulb checked first then
values should be set to objects.

before fetching from parameter , fetching only Email id and checking in
databse for same id if any entry found in database , giving user the
proper information of already registered , and if email id not dfound in
databse , then started fetching all other form data and saving it into
databse fo9r signup process.

Signed-off-by: Ashish Namdev <ashish28.sirt@gmail.com>
Merge pull request #10 from AshishNamdev/ash/13w43-fixes

Please merge ash/13w43 fixes, fix for Issue #16 , #17 .and #29 :

Merged ash/13w43-fixes in 13w43-fixes ..