Sharon: Upgraded gradle version to 1.5. Added licenses for the regexp and xerces libraries
Jason: added new price check extension and response. moved pricing
acknowledgements to the price schema.
Jason: fixed error in price xsd.
1225 Anshuman: Added claims check extension to ari toolkit
1227 Anshuman: Added availability check to RTK toolkit
Sharon: Updated the toolkit to support the missing extensions.
Added readme.md. Cleaned up the examples
Sharon: Added version number checking