* add factory method for Mapper maps
* move ClusterConfigSpecExMap to separate file
Fix ruby warnings.
Merge pull request #78 from nanliu/tb/warning

Fix ruby warnings.
Merge pull request #79 from nanliu/modulefile

Add dependencies to modulefile.
Merge pull request #77 from rbbrown/tb/mapper-split

simplify use and extension of PuppetX::VMware::Mapper
Change Modulefile version increment.