Log Message:
Update to 1.22:

2006-07-16 v1.22 Tels 123 tests
  * fix bug #19071: byteorder for TIFF on 64-bit systems broken
  * better error message in case SOI is missing in a JPEG
    (still no fix for #20183)
  * SVG:
    + use the correct MIME type "image/svg+xml"
    + version extraction was broken
    + comments had too much whitespace at front/end (these should be
      ignored and not extracted anyway)
  * add svg.t
  * resize test.jpg and test.png to make dist smaller
  * add interlace.png and beef up t/png.t