#179 Resmed encoding issue cause import problem on QT5.2

[manderss99]

Compiled latest source code from git / QT5.2 on Mavericks, S9 Auto 0907 Swedish.

This is a follow up on patch in issue #175 and affects Swedish S9 machines.
The previous patch worked fine in QT4.8.5, however there is a change in behaviour in 5.2.

Turns out that Resmed encodes any national characters in the signal labels in UTF-8,
in 5.2 the QFile read operation returns a national character as two separate bytes, which was not the case in 4.8.5.

I'm attaching a patch that works for me, please consider committing unless there is a better solution.

Would it be possible to take a different approach on this, use some signal number possibly combined with firmware version check? There are likely quite a few people affected since only a few languages are currently implemented.

[Mark Watkins]

Sorry for missing your patch.. my emails got swamped.

Tested and committed to master branch.

I'm really not sure how to detect the field order of the machine variants. I really wish there was an easier way to do this. If you have any ideas on how to accomplish this I'm all ears.

Thanks for the patch.