This fixes two problems with importing MindManager 7 .mmap files into FreeMind 0.9.0 beta 10:
1) HTML notes were not imported correctly; first, the old xsl was importing the "preview" of the note rather than the HTML content, and second the FreeMind output used the old 0.8.0 XML format for the note
2) MindManager nodes that had a horizontal positioning hint of "0" were being turned into FreeMind nodes with a positioning hint of "left". Fixed so that we only get a FreeMind hint if the MindManager hint is non-zero
This has only been tested with MindManager 7 files, because I do not have access to any other versions. I would be happy to test with other versions if you send me example maps.