Merge pull request #86 from daTa-deVil/master

[StbHardware.py] first try to fix the time-issue on vfd-clock with sti7162-boxes
Fix free space calculation

Block sizes don't care about IEC; they are still theoretically multiples of 512 and practically multiples of 4096.

65536 bytes in a block still have to be a 64k block and not a 65k block, a 131072 bytes block has 128k and not 131k and so on.
[VideoMode.py] In smart1080p mode, set frame rate based on file name (e.g. *p24.*) even if video_height or video_width is 0
[EpgList] fix multiepg recording background (text and graphical) for timeline now
[EpgList] add background for recording busy
[EpgSelection] workaround for graphical issue with "EPG_TYPE_GRAPH"