Bump new version to apply fix for build on the MacOS

Patch for MacOS was not full and it was required to
create CABAL_OS_DARWIN and CABAL_OS_WINDOWS env
variables.

X-GITHUB-BUG-NO:  Issue #23
X-GITHUB-BUG-URL: https://github.com/qnikst/imagemagick/issues/23#issuecomment-27161949
version bump