0.004
    changed convert installed check to use which to return path to convert, or assume it's not installed - *should* fix error when convert wasn't installed, probably not on win32 though or other places where there's no which...
0.003
    fixed `convert` install check (looks for error 127)
0.002
    Added not about convert being needed to POD
    adjusted so still works (reduced functionality) without convert installed 
0.001
    First release
