Following a commit by @k0ral, this completes the upgrade of the other
`mediainfo` components.
From the changelog:
```
Version 0.7.79, 2015-11-02
+ CLI/DLL only, XML: new option --Output=MIXML, with XML v2.0beta1
status, not for production, see
https://github.com/MediaArea/MediaAreaXml for more details
+ MediaTrace: support of more than 1 file in XML output.
+ CLI/DLL only, XML: new option --Output=MAXML, with XML v0.1 status, in
order to have bot MediaInfo and MediaTrace in the same output, not for
production, see https://github.com/MediaArea/MediaAreaXml for more
details
x MediaTrace: fixed some invalid outputs
x #B951, Amazon S3 support (REST API v2), CLI/DLL only and if compiled
with libcurl support: URL without credential were badly interpreted
```
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