Use the embedded counter inside a Map

Use the embedded mod_map inside the dt extractor
Merge pull request #398 from basho/bug/rdb/gh-kv967-embedded-cntr

Use the embedded counter inside a Map

Reviewed-by: seancribbs
Remove obsolete comment

This comment is no longer valid.  The reason AAE was being triggered
after node restarts was because Riak Test was hard killing (kill -9)
the cluster causing corruption and thus causing AAE to go nuts.
Merge pull request #400 from basho/rz/remove-comments

Remove obsolete comment

Reviewed-by: coderoshi
Correctly set Jetty temp directory

A custom `solr-jetty-context.xml` must be used so that the
`tempDirectory` is set properly.  `jetty.home` is a system property,
not a regular property.