Updated to allow finding image and flavor using integers or strings. Fixes #109
Merge pull request #110 from rackspace/fix_find_matching

Updated to allow finding image and flavor using integers or strings.
Updated to escape flavor and image name if using fog 1.22.1 or earlier.
Merge pull request #111 from rackspace/escape_fix

Updated to escape flavor and image name if using fog 1.22.1 or earlier.
v0.1.9