- fixed $preset['presetname] should be $preset in _imagecache_preset_flush
- touch up header doc block to be phpdoc style.

Woops, this patch has some rollback and move forward code. I miscommited some dev code with killes last
patch.

#108672 by quicksketch/dopry, preset caching

mainly so it will play will with other image modules.

same image at the same time.

keep active preset fieldset open.
tnx, quicksketch

--rename funtion to imagecache_image_flush to match imagecache naming conventions.
--switch path creation to use the same code as imagecache_cache uses to generate dest.

tnx, quicksketch

tnx, quicksketch
modifications
--added a missing break in the update switch statement.
--fixed check clause for actionid
--switch update_N to not conflict with previous patch.

tnx, quicksketch

--added some modifications to clean up ruleset/preset name. ruleset should be gone now.
--moved flush calls to before db updates, otherwise preset names could be updated before
  a flush was called.

tnx, suit4

tnx, RobRoy (http://drupal.org/user/22975).

removed trailing </a> from theme_imagecache