zvbi: default alignment to bottom
zvbi: set pf_decode_sub at the end
zvbi: set position to be absolute only for non-text subtitles and give reasonable stop time
zvbi: strip leading/end whitespaces from text subtitles
zvbi: initialize pointer
zvbi: mimic cc.c for using subtitles updater etc to avoid flickering in text subtitles
zvbi: set text format as default, as subtitles should look better and seems to work for me
zvbi: handle opaque in text mode also
zvbi: set default opaque to false as default is text mode now
Remove unused bindings directory