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image-type-from-file-header): Revert changes from 2006-12-26.
(image-type-auto-detectable): New variable.
(image-type-auto-detected-p): New function.

to include third item NOT-ALWAYS.
(image-type-from-data): Handle new format.
(image-type-from-buffer): Handle new format.  New arg INCLUDE-MAYBES.
(image-type-from-file-header): Pass t for INCLUDE-MAYBES.

Use non-capturing parenthesis for `tiff' regexp.

(create-image): Use it.

image-load-path.

one binds image-load-path. Just defvar it to placate compiler and only
use it if previously defined.

Always return list of directories. Guarantee that image directory
comes first.

no-error argument. If path t, just return directory.

Gnus and MH-E into this one function that can now be shared.

Change uses.
(image-type-file-name-regexps): New defconst.
(image-type-from-data): Simplify loop.
(image-type-from-buffer): New defun.
(image-type-from-file-header): Use it instead of image-type-from-data.
Use image-search-load-path instead of only looking in data-directory.
(image-type-from-file-name): New defun.
(image-search-load-path): Make PATH arg optional, default to image-load-path.
Change `pathname' to `filename'.

	docstring.

for backward compatibility with packages that bind it during
`find-image'.  Suggested by Katsumi Yamaoka.
(image-search-load-path): Handle symbols whose values are strings.

	* image.el (image-load-path): New variable.
	(image-search-load-path): New function.
	(find-image): Search for images in `image-load-path'.

(image-type-available-p): Doc fix.

libraries.  Initialized to nil, unless system-specific configs change it.
(image-type-available-p): Determine whether an image type is available by
calling `init-image-library'.

line-spacing property on newline.

to newlines separating image lines.

(insert-sliced-image): New defun.

adjust_point_for_property should be sufficient by default.