ACCUMULO-1689 Add a simple test to make sure we get rid of some files after
compacting tables which we wrote data to.
ACCUMULO-1689 Make the test take a little less time on average.

By sleeping smaller amounts of time and checking to see if our file count has gone down
as opposed to a single sleep and check, we can make the test run quicker for the
average user.
ACCUMULO-1689 Merge remote-tracking branch 'origin/1.4.5-SNAPSHOT' into 1.5.1-SNAPSHOT

Conflicts:
	pom.xml