No functional changes.

This commit moves files around slightly, adds copyright headers where
they were missing, and adds Dave R as an author on the API.

Moving RiakClient and RiakCommand up to com.basho.riak.client
allows better access controls over our classes.
Merge branch 'develop' into reorg-packages
Call correct method.

Because stackoverflows are bad, m'kay.
Because ... towbstones.

Re-used the same keys and got tombstones, which I wasn't trying to test.
Merge branch 'develop' into reorg-packages

Conflicts:
	src/main/java/com/basho/riak/client/operations/datatypes/CounterUpdate.java
	src/main/java/com/basho/riak/client/operations/datatypes/DatatypeUpdate.java
	src/main/java/com/basho/riak/client/operations/datatypes/MapUpdate.java
	src/main/java/com/basho/riak/client/operations/datatypes/RiakCounter.java
	src/main/java/com/basho/riak/client/operations/datatypes/RiakDatatype.java
	src/main/java/com/basho/riak/client/operations/datatypes/RiakFlag.java
	src/main/java/com/basho/riak/client/operations/datatypes/RiakMap.java
	src/main/java/com/basho/riak/client/operations/datatypes/RiakRegister.java
	src/main/java/com/basho/riak/client/operations/datatypes/RiakSet.java
	src/main/java/com/basho/riak/client/operations/datatypes/SetUpdate.java