Adds initial code for retreiving the extension name from an install.rdf file located inside a directory for a directory-loaded extension.  Falls back to directory name if install.rdf isn't found or doesn't contain a name tag.
Disables compilation of readme.md
Pulls the act of getting the name value from inside install.rdf into it's own method.
Set readonly status to false on files inside directory-loaded extensions before deleting the directory.