[release] bump to 14.0 beta1
[pvr] fix deleting recording folders
[linux/ubuntu] update README files
Revert "upnp: fire an update source message when a UPnP server becomes available/unavailable"

This reverts commit ff7416411df2d7f83906417232eee9466419be7b.
Revert "media library: add UPnP servers to sources://<mediatype>"

This reverts commit 762602329985513e071da34502a5b4af2ec83f65.
Merge pull request #5605 from yanniks/readmelnx

Update READMEs for Linux / Ubuntu
Merge pull request #5639 from Montellese/revert_upnp_sources
xbmc -> left over 

I guess its up to huceke to update his buildroot readmes.
Merge pull request #5640 from uNiversaI/patch-2

[Readme] xbmc -> kodi left over
Merge pull request #5612 from Jalle19/fix-delete-recording-directory

[pvr] fix deleting recording folders
Merge pull request #5461 from MartijnKaijser/14.0b1

[release] bump to 14.0 beta1
[release] also bump version in configure.in