1. Bug #0000107: Implement "MemCached" functionality 2. Complete reset of all Memcache cache on re-install eliminates cache left over side effects when caching handler is set directly in "config.php" and not in db as usual.
Bug #0000362: We should move all module folders to new "modules" subfolder
1. prerequisites were not checked during installation 2. all modules were having 5.0.0 version on installation instead of actual version 3. not installed modules also were having 5.0.0 version on modules list in administrative console 4. prerequisites were not checked on modules list in administrative console