Log Message:
Updated ImageMagick to 7.0.4.7.

2017-02-04  7.0.4-7 Cristy  <quetzlzacatenango@image...>
  * Release ImageMagick version 7.0.4-7, GIT revision 19513:5783e57:20170204.

2017-01-28  7.0.4-7 Cristy  <quetzlzacatenango@image...>
  * Sanitize comments that include braces for the MIFF image format (reference
    https://github.com/ImageMagick/ImageMagick/issues/368).

2017-01-27  7.0.4-7 Glenn Randers-Pehrson <glennrp@image...>
  * coders/png.c: Added support for a proposed new PNG chunk
    (zxIf, read-only) that is currently being discussed on the
    png-mng-misc at lists.sourceforge.net mailing list.  Enable
    exIf and zxIf with CPPFLAGS="-DexIf_SUPPORTED -DxzIf_SUPPORTED".
    If exIf is enabled, only the uncompressed exIF chunk will be
    written and the hex-encoded zTXt chunk containing the raw Exif
    profile won't be written.

2017-01-27  7.0.4-6 Cristy  <quetzlzacatenango@image...>
  * Release ImageMagick version 7.0.4-6, GIT revision 19442:4747de9:20170127.

2017-01-27  7.0.4-6 Cristy  <quetzlzacatenango@image...>
  * Uninitialized data in MAT image format (reference
    https://github.com/ImageMagick/ImageMagick/issues/362).
  * Properly auto-fit caption (reference
    https://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=30887).
  * Correction to composite Over operator (reference
    https://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=31282).
  * Respect gravity option (reference
    https://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=31284).

2017-01-22  7.0.4-6 Glenn Randers-Pehrson <glennrp@image...>
  * Renamed read_vpag_chunk_callback() function to png_user_chunk_callback()
    in coders/png.c
  * Implemented a private PNG caNv (canvas) chunk for remembering the
    original dimensions and offsets when an image is cropped.  Previously
    we used the oFFs and vpAg chunks for this purpose, but this had potential
    conflicts with other applications that also use the oFFs chunk.
  * coders/png.c: Added support for a proposed new PNG chunk (exIf
    read-write, eXIf read-only) that is currently being discussed on the
    png-mng-misc at lists.sourceforge.net mailing list.

2017-01-22  7.0.4-6 Dirk Lemstra <dirk@lem.....org>
  * Replaced CoderSeekableStreamFlag with CoderDecoderSeekableStreamFlag and
    CoderEncoderSeekableStreamFlag.