some theme function fixes and move remove memory limit and toolkit requirements to imageapi gd and imageapi where they belong respectively.

Avoid a fatal error if the filefield module is disabled after setting up imagecache as the formatter.

Small UI improvement, when there are no actions on a preset go ahead and expand the fieldset with the list so the next step is clear.

fix a type in imagecache_actions.inc.

d6 port.

remove presets from /admin/build/imagecache title

clean up height/width settings for imagecache_scale_and_crop to compensate
for auto scaling on 0 in imageapi.

#201849 by jpetso, Flush (remove) also hidden files. enable recursive delete to remove hidden files.
I modified slighty using dir() instead of opendir... supposedly a teensy bit faster.

use $node->nid instead of $item['nid'] when creating link.

since I expect relative paths everywhere else in drupal...

#220606i by almich, dangling lockfiles, register_shutdown_function is picky about having absolute paths... realpath to save the day.

#227606 reported by safknw, "Invalid argument supplied for foreach() in /var/www/vhosts/endoportal.de/httpdocs/modules/imagecache/imagecache.module on line 299."
added an empty check before trying to iterate over _SESSION['imagefield']

add a check to validate that the requested file is in fact an image... should prevent
people from trying to load .css/.php etc files... ;)

some warnings.. if you're gonna use files outside of the file directory path.. be wary
that the relative paths don't conflict with paths in the file directory path.

add path formatter
move hook_requirements to .install
add more requirements... check directories and memory_limit.

add default classes to theme_imagecache and imagecache formatters to give CSS and
JS better targets.