Fix the forcing of iteration in the batch.

When no timeout was specified, our default of an hour was causing a new
iteration for each object, after an hour passed. Now use a magic value of
-1 to determine if a timeout was set or not.
Fix variable.
Add optional parameter for namespace

There was code in place to take advantage of this, but there wasn't code to define and accept the parameter from a Drush invocation.
Merge pull request #12 from lyrasis/lyr-master

Add optional parameter for namespace to islandora_batch_scan_preprocess
Merge pull request #11 from adam-vessey/7.x-fix-variable

Fix forced iteration.
adding travis.yml file
Fixed coding standards
updated README
Merge pull request #13 from philsogaDGI/7.x

Setup Travis and Tests