Create new cdh5 and gplextras5 subclasses.
Do not start CM DB service before package is installed.
Install CDH5 by default when not using parcels.
Include impala and search in cdh5 subclass.
Add support for JCE 7 files.
Add rspec tests for CM5 and Java 7.
Add rspec tests for gplextras5.
Add rspec tests for CDH5.
Update rspec tests for main class.
Add Search support to cdh5 subclass.
Fix errors found during rspec testing.