throw a warning to remind us just how crappy PEAR is
make the pear package task create .keep files in empty dirs
fixed typos ('user' should be 'username')
use /u modifier to prevent complaints about unicode character property code
now it's just ascii, no weird umlauts in overloaded methods for template layers. sorry. refs aedb83864609959b3d356a0429a6b1c060a6baaf