Extract path-manipulation utilities into PathUtils, to correspond with the same classes in EDC. -- Also, fix oversight where Win32 paths were not properly converted into IPath on Unix (the device was not set).

source.. = src/,\
           schema/
output.. = bin/
bin.includes = plugin.xml,\
               META-INF/,\
               .,\
               data/,\
               icons/,\
               plugin.properties