Merge pull request #5 from ashish343/release

Release
Persisting order in the database
Adding code for intermediate orders persistance
Merge pull request #6 from ashish343/sjain7

Adding code for intermediate orders
database integration
Merge pull request #7 from ashish343/sjain7

database integration
database integration
Merge pull request #8 from ashish343/sjain7

database integration
subOrder generation
Merge pull request #9 from ashish343/sjain7

subOrder generation
database integration
Merge pull request #10 from ashish343/sjain7

database integration
adding database integration