fix filepath handling in windows
Merge pull request #207 from Kiripon/windowsFilePathHandling

fix filepath handling in windows
comment.
fixing #204.
Use temporary buffer for `ghc-display`

Instead of opening a normal editable buffer (in which editing text does
not make a lot of sense), use Emacs's temporary buffer. Benefits:

   - Read only: Text cannot be modified when focused.
   - Much easier to close (press q), after reading or copying from the
     warning/error.

Signed-off-by: Rohan Jain <crodjer@gmail.com>
add command line option: -b sep
Merge pull request #209 from yuga/option

add command line option: -b sep
elisp doc update.
remove minibuffer error message redundancy.
checking buffer-read-only.
ver bumps up.
Merge pull request #210 from notogawa/remove-redundancy

remove minibuffer error message redundancy.
removing trailing \n for minibuf.
adding two mods to preferred.
refactoring.
errors over warnings (#212).
imports Data.ByteString, System.FilePath, and System.Directory at booting.
changelog.
debug also displays sys lib dir.
Supporting GHC 7.8's unicode quote.