Revert "Encode buckets and keys using base16."

This reverts commit 05f45409b454c4c80074cf80d74e6e4f729ca146.

Conflicts:
	src/krc_obj.erl
	src/krc_pb_client.erl
Merge pull request #3 from b3rnie/master

Revert encoding of keys and buckets as base16