! Tweak language strings to reflect 2.1's support for ImageMagick. Also, don't warn about missing ImageMagick functionality if MagickWand is installed.

Signed-off-by: Michael Eshom <oldiesmann@oldiesmann.us>
Merge pull request #1110 from Oldiesmann/release-2.1

! Tweak language strings to reflect 2.1's support for ImageMagick. Also don't show a warning if MagickWand is available.