Fix recent warnings introduced by several tickets

ACCUMULO-2005
ACCUMULO-2182
ACCUMULO-2224
ACCUMULO-2234
ACCUMULO-2539
Merge branch '1.4.5-SNAPSHOT' into 1.5.2-SNAPSHOT

Conflicts:
	fate/src/main/java/org/apache/accumulo/fate/util/AddressUtil.java
	test/src/main/java/org/apache/accumulo/test/functional/RunTests.java

Include warning from ACCUMULO-2433