Clear empty or zero rating

The rating form control handling results in a zero if not scraped so
make sure it's not set if zero or empty
more Frodo compatible

- added a button in movie settings to to check all Frodo compatible
filenames
- added a button in tv show settings to to check all Frodo compatible
filenames
- added <movie>-poster.jpg
- change "SeasonAllPoster" to "SeasonAllPosterJPG" for better
readability in code
change actors thumbs from .tbn to .jpg
Merge pull request #3 from GreenOnyx/NoRating

Clear empty or zero rating
increase version number
VideoTSParent nfo/jpg handling

Handle nfo/jpg files in the VIDEO_TS or BDMV parent directory if
VideoTSParent is true. Only in Settings.xml now, will expose later.
workaround for scraping season-special-fanart.jpg

this is only a workaround
Merge pull request #5 from GreenOnyx/VideoTSParent

VideoTSParent nfo/jpg handling
added <movie>-poster.jpg to pull request #5
Merge remote-tracking branch 'upstream/1.3.0.x' into 1.3.0.x