Detects Windows using 'islandora_os_check' (pending in islandora.module file); updates command line call to Kakadu.
ISLANDORA-87 Ensured all comments were 80 characters or less.
ISLANDORA-87 Edited comments, mostly to trigger a rebuild of Travis-CI.
ISLANDORA-87 OS-check function renamed/moved; adjusted code accordingly.
ISLANDORA-87 OS-check function merged (#450). Travis CI should now pass.
ISLANDORA-87 Removed superfluous comments.
Merge pull request #87 from slangerx/7.x

Windows-compatibility: Calling Kakadu through the command line