update for the tour to accept and process an uploaded file for it's image
did a bit of work on the image detection/getter methods
Updated Tour library hasImage() to use DIRECTORY_SEPARATOR constant instead of coding for linux-only environments
forgot to pass tag_wrap through
remove the text informing that there's no image if there is no image
Merging changes from Brandon
Merge pull request #4 from greyson/master

Tour media files added.