added Gretel Utility class.
added HanselUtil class.
added JackUtil class.
added JillUtil class.
Merge pull request #6 from FairyTail/master-hansel

Hansel Utility
Merge pull request #7 from FairyTail/master-jack

Jack Utility class
Merge pull request #8 from FairyTail/master-jill

Jill Utility class
Merge pull request #9 from FairyTail/integration-branch

merged integration release branch back to master branch.