cacherouter 6.x-1.0-rc1

Fixed the following issues:

#463758: Cache Router » package name by psynaptic: Change module package in info file
#472864: Deletion warnings in APC by fgm: Deletion warnings in APC
#493198: File engine fixes by doq: File engine fixes
#352953: fileCache::delete() passes in wrong argument type for fopen() and unlink() by chenba: fileCache::delete() passes in wrong argument type for fopen() and unlink()
#353815: Cache Router fails - No way to get it working by jvieille: Cache Router fails - No way to get it working
#495736: Unwanted undefined index notice by greg.harvey: Unwanted undefined index notice
#371059: * warning: Missing argument 1 for dbCache::flush() by int: * warning: Missing argument 1 for dbCache::flush()
#526014: eaccelerator error by lizuka: eaccelerator error
#516660: Adding a "none" or "null" method? by joshk: Add none or null engine.
#516658: Adding memcached (not "memcache") method by joshk: Add memcached engine (not "memcache")
#422586: engines/file.php by expandonline: engines/file.php
#475788: File engine - Cache write error presented to users. Should log by default and only display for Administrators by harking: File engine - Cache write error presented to users. Should log by default and only display for Administrators
#365065: Refactor Cache::__construct so that it's easy to pass options to cache by Damien Tournoud: Refactor Cache::__construct so that it's easy to pass options to cache
#393430: getting some warnings on "db" mode by PlayfulWolf: getting some warnings on "db" mode
#341575: XCache causes white screen of death by janicel700, andypost, greg.harvey, et al: XCache causes white screen of death
#418764: cache_clear_all() in cacherouter.inc by mundanity, TBarregren: cache_clear_all() in cacherouter.inc
#422250: Integration with Authcache module by Jonah Ellison: Integration with Authcache module.
#463046: APC engine sets timestamps as TTL when not using CACHE_TEMPORARY or CACHE_PERMANENT by neilnz: APC engine sets timestamps as TTL when not using CACHE_TEMPORARY or CACHE_PERMANENT
#317112: PEAR namespace collisions ("Cache") by davidwhthomas, dmiric: PEAR namespace collisions ("Cache") (was PEAR problem)

Fixed a whole bunch more issues, fixed performance issues, fixed tests and made sure all engines pass all tests.

This should be a good release.