DEFAULT_INCLUDE_PATH
PEAR_INSTALL_DIR
PHP_EXTENSION_DIR
PHP_BINDIR
PHP_LIBDIR
PHP_DATADIR
PHP_SYSCONFDIR
PHP_LOCALSTATEDIR
PHP_CONFIG_FILE_PATH
* no longer generating pear/PEAR.php
* fixed some tests
* some more installer work
* PEAR_Error moved into PEAR.php to reduce the number of files that are
always included
* cleaned up the PEAR_Error API a bit and changed the two classes using it
* added PEAR_Installer - an administration class for installing packages
and maintaining a "class/file cache"