* support packages from other than default channels
* replace deprecated function usage in pear_plist.php
* generate filelist from installed registry, to support "install as" files.
tested with all pear pacakgs in pkgsrc.
newer pear packages.
* Fix the case where an extra slash would be appended to the file path in the
PLIST.
* Both fixes from from Loic Hoguin and tested by Loic and myself.