Using iHarder.net implementation of base64 to reduce dependencies.  Andr...

This is both for performance as well as compatibility with Android.  I could of course suppress the lint errors, but my company would prefer that we don't.  This implementation does not have any external dependencies on either apache commons or java.xml.bind.* for preforming the base64 encoding and this implementation is one of the fastest implementations out there as seen below.

http://java-performance.info/base64-encoding-and-decoding-performance/