Exposing lower level API using GhcMonad
Rename GhcModLowLevel to GhcMod.Internal and document exposed items.
Merge pull request #141 from alanz/master

Exposing lower level API using GhcMonad
removing unnecessary dep.
ver bumps up.
removing shouldContain since hspec provides it!
module name change.
reverting convertible dep.
ver bumps up.
adding LineSeparator.
exporting LineSeparator.
Adding "-b" command line option for line separator.
Fix warning
Exit with status 1 on error
Implement help command as advertised in usage
Don't silently ignore superfluous command line arguments
check + expand: Allow passing in multiple files