Created file for lvm state. Implmenetd vg related functions
Added functions to create/remove logical volumes ref #118
Added function for creating pysical volumes. ref #118
Added comments to functions. ref #118
Fixed calls to lvdisplay salt command.
Added module comment block
Caught error cases in display commands for lvm module.
Use kwarg for lvm absent
Added docs for lvm state
Added docs for lvm state
Initial addition of list_available
Check for one item in names
just return the keys which are the version numbers
Bad ref to clear_load instead of load
Fix #4662
rm unused var 'cmd' from modules.file._psed
Merge pull request #4700 from hulu/file._psed-unused-var-cmd

rm unused var 'cmd' from modules.file._psed()
Fix #4678
copyedit returners.mongo_future_return.get_load() docstring
fix typo: retrive -> retrieve