Commit with following fixes:
1. Duration tag - MP does not recognize "xxx min." string as minutes
2. folder.jpg is not taken as cover when movie folder is "Dedicated movie folder"
3. On nfo export, Mp does not create <id> tag
4. "Do not use database" option is not unchecked when deselecting "Use internal nfo scraper only"
5. Fix hardoceded string "as" on actors and role read in nfo file
6. Watched status is not updated if "watched" tag is missing but "playcount" tag exist and is greater than zero (XBMC style)
7. Import of fanart which filename contains "." fails (ie.: 10.000 BC-fanart.jpg)
Added .tbn image extension recognition in MovieInfo screen (non database usercase)
.tbn extension variable set typo fix (still not visible on nfo read or import)
make regex expressions for duration tag case insensitive
"Scan" function (menu button and context menu options) inside MP now obeys "Do not use database" option in share views
Merge branch 'BUG-4116-Nfo_Importer_Fixes'