ACCUMULO-2480 make the tserver give up and die if openning the WAL experiences 5 errors in 10 seconds
Merge branch 'master' of https://git-wip-us.apache.org/repos/asf/accumulo
ACCUMULO-2480 move IT into the src/test tree
ACCUMULO-3030 allow scanners to be interrupted
ACCUMULO-3180 Better test naming and some extra functionality to SlowIterator
Merge branch '1.5' into 1.6

Conflicts:
	test/src/main/java/org/apache/accumulo/test/functional/SlowIterator.java
Merge branch '1.6'
ACCUMULO-3085 Fix log message
Merge branch '1.5' into 1.6

Conflicts:
	server/tserver/src/main/java/org/apache/accumulo/tserver/Tablet.java
Merge branch '1.6'
ACCUMULO-3187 Up the default memory for MAC for ExamplesIT

Was seeing some OOMEs. Give the JVM a little more headroom.
Merge branch '1.6'