ACCUMULO-1908 Add in small sleeps to let ZK information propogate.
ACCUMULO-1908 Make an odd du assertion a little more odd.
ACCUMULO-1908 Manually set filter on table and force deletetable.

It appears that testPertableClasspath could never pass as expected, but I didn't investigate how it did sometimes.
Because FooFilter extends Filter, it should always hang waiting for the option to be input. Additionally, the
deletetable should have also hung indefinitely because it wouldn't get the necessary user delete confirmation.
ACCUMULO-1062 disabling testParallelWriteSpeed

git-svn-id: https://svn.apache.org/repos/asf/accumulo/branches/1.5@1461552 13f79535-47bb-0310-9956-ffa450edef68
ACCUMULO-1215 Backport change to stop running test from 1.5 to 1.4
Merge remote-tracking branch 'origin/1.4.5-SNAPSHOT' into 1.5.1-SNAPSHOT
Merge remote-tracking branch 'origin/1.5.1-SNAPSHOT' into 1.6.0-SNAPSHOT

Conflicts:
	test/src/test/java/org/apache/accumulo/test/ShellServerIT.java