Added test cases.
resolving conflicts
fixed Track.pm
Merge pull request #9 from anu713/master

fixes
resolving conflicts
Merge pull request #10 from nirmal7755/master

removed conflicts.
changed key values
Merge branch 'master' of github.com:nrekha/Training
checks
Merge pull request #12 from anu713/master

check for valid hash added
fixes
Merge pull request #13 from anu713/master

fixes
add to db
Merge pull request #14 from umaiyalvelayutham/master

add to DB