Fixed minpre/minpost calculation wich neither worked on hour borders nor on day borders
Merge pull request #6 from smallint/master

Fixed minpre/minpost calculation wich neither worked on hour borders nor...
fixed: potential endless-loop bug (thanks to FrankJepsen)

http://www.vdr-portal.de/board16-video-disk-recorder/board99-distributionen/board96-yavdr/p1209406-vdr-plugin-restfulapi-verursacht-100-cpu-last/#post1209406
Escape Channelgroupnames
cherry-pick move recordings from saman
updated API.html
The query strings in deleteRecordingByName and moveRecording now read from the message body
Fixed IsFlagsValid
Add response to move recordings, contains new relative file name
Insert Samans changes to reply after moving, videodir fix
Simplify moverecordings, move response to own method