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.

#210009, lock file always created for private files... added an if file_exists($dst) to deliver the image sooner in
_imagecache_cache. tnx for pointing it out. http://drupal.org/user/216078

#209984, imageapi_image_close called twice... oops. tnx for pointing it out http://drupal.org/user/216078#209984, imageapi_image_close called twice... oops. tnx for pointing it out http://drupal.org/user/216078

that does the exact same thing....

implement hook_imagefield_file to delete cache images when an image is deleted using imagefield...

umasks...  the mode added to a mkdir is still affected by the umask, so
I added a chmod after the mkdir, which seems to work regardless of the
umask.

We no longer need to remove the tmp file in this location since it is handled by a shutdown function.

update for latest imageapi...

- got rid of a couple unneccesary file copies.
- simplified locking code, moved completely outside build derivs...

output/
#201762 by jpetso, doxygen fixes
#201757 by jpetso, use basename in place of str_replace
#201640 by jpetso, hook_requirments array key fix clean_urls should be imagetoolkist

also updated to use imageapi_get_toolkits in head.

removed lingering dsm

Wrote my own imageAPI that does image ops without writing the files... The output is much prettier...
Still a little slow...