Since build #1917, URL to path conversion was broken.
Thanks to Peter for reporting the bug.
Most of the path handling code was taken from the windows frontend.
Note:
- NetSurf core switched to an file handling table with default
posix compatible functions.
- The atari frontend always uses GEMDOS compatible
path like: "u:\folder\1", even when running on top of
FreeMiNT environment.
