Log Message:
Version 1.15.3 (released 2014-09-04)

* Fix URLs for opensource.y.com -> developers.y.com move.
* Whitelist firmware version 3.3 and detect new PIDs.

Version 1.15.2 (released 2014-07-30)

* Whitelist firmware version 2.5
* Read key when importing configuration.
* Fix formatting error in information about what is written to key.
* Check return codes when doinf NDEF writes.