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 fe032c9818b9cfc0644ca03bedb9d3ab2060124c