Include minimal HDFS/MR roles in itnegration tests, Whirr 0.9 forces this
Update CM repos to allow minor version numbers
Ensure CM4.8 accounted for in version matrix
Support CM decalritive minor versions
Revert to CM4 dependency
Update for binary incompatibility introduced for CE5, restict to CM5+, CDH4+
Update default config for CM5, Solr HBase Indexer and Impala Catalog Server
Update README
Support CDH4 and CDH5 under CM5 deployment
Update README
Merge pull request #48 from ggear/graham-patch-CDH-15508

CDH-15508: Update Whirr-CM to support CM5 / CDH5