Add HBase short CF names for three families

These three CFs did not have short name mappings:

  system_properties_lock_
  systemlog
  txlog

This commit adds a single-character short name for each one.
Tweak gremlin.sh log config for HBase & MR

Using the HBase storage backend in gremlin.sh produced a ton of these
relatively uninteresting ZK log messages level:

INFO  org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper  - Process identifier=catalogtracker-on-hconnection-0x45f55321 connecting to ZooKeeper ensemble=127.0.0.1:2181

The default logger level is WARN, but I set the org.apache.hadoop
package prefix to INFO a while back by default so that MapReduce job
progress information would be visible.  This ZK noise is an unintended
side effect.

This commit narrows the INFO override to
org.apache.hadoop.{mapred,mapreduce}.  It's still possible to override
both the catchall level on the root logger and the level of the MR
packages via either the -l command line option to gremlin.sh or by
setting these environment variables:

 GREMLIN_LOG_LEVEL
 GREMLIN_MR_LOG_LEVEL
Updating HBase short CF names

Changing the single-letter space-saving HBase column family names so
that they once again bear at least some mnemonic link to their
long-form equivalents.  Some of the long forms have changed since the
HBase shorthands were introduced and the short forms weren't updated.
Delete deprecated HBase option from stock configs

Setting storage.port on HBase has been deprecated in favor of either
setting hbase.zookeeper.property.clientPort in hbase-site.xml or
storage.hbase-config.hbase.zookeeper.property.clientPort in the Titan
configuration for a while now.  storage.port is succinct but too
ambigouous since HBase relies on multiple ports.