Merge remote branch 'apache/master' into ACCUMULO-802
Merge remote branch 'ctubbsii/ACCUMULO-802' into ACCUMULO-802
ACCUMULO-802 updated MockTableNamespaceOperations to use Credentials rather than just a username
ACCUMULO-802 disabled the namespaces specific randomwalk portions due to failures
ACCUMULO-802 added namespace-specific randomwalk classes and updated randomwalk to include namespace operations. Changed the default randomwalk settings to 15 tables and 2 namespaces as opposed to 5 tables to help with namespace testing"
ACCUMULO-1626 fixed equals method in mutation
Merge remote-tracking branch 'origin/1.4.4-SNAPSHOT' into 1.5.1-SNAPSHOT

Conflicts:
	core/src/test/java/org/apache/accumulo/core/data/MutationTest.java
	core/src/test/java/org/apache/accumulo/core/data/OldMutation.java
Merge remote-tracking branch 'origin/1.5.1-SNAPSHOT'
ACCUMULO-802 added a few more namespace-specific randomwalk tests
solving merge conflicts
Merge remote-tracking branch 'wisellama/ACCUMULO-802' into ACCUMULO-802

Conflicts:
	core/src/main/java/org/apache/accumulo/core/client/admin/TableOperationsImpl.java
	core/src/main/java/org/apache/accumulo/core/client/mock/MockTableNamespaceOperations.java
Merge remote-tracking branch 'asf/master' into ACCUMULO-802