shipping and cc info
shipping and credit card attributes and tests added
added license headers and fixed callbacks to be interfaces rather than abstract classes
added persistence layer for shipping and cc attributes
some more fixes and tests
some fixes and tests for ID-161
Merge branch 'shipping-and-cc' of ssh://github.com/securekey/openmidaas-android-lib into shipping-and-cc
create method factory refactored for ID-166
refactored db persistence factories ID-171
some fixes in the db persistence store. ID-171
minor error checking tweak. ID-171
removed unused imports. ID-171
small tweak to queue manager to use the in-built blocking queue ID-171
small fix to persistence store, comments in queue manager class ID-171
Merge pull request #5 from securekey/attr-save-refactor

Attr save refactor