ACCUMULO-1993 ACCUMULO-1994 make proxy useful for ruby, fix getRowRange (and test it)
Merge branch '1.4.5-SNAPSHOT' into 1.5.1-SNAPSHOT
Merge branch '1.5.1-SNAPSHOT' into 1.6.0-SNAPSHOT

Conflicts:
	proxy/src/test/java/org/apache/accumulo/proxy/SimpleProxyIT.java