pvr: increase changes counter of stream on stream change, cosmetics after dd307930d39d92f145a01a16600cd00e01ec39be
pvr: do not show selection dialog for a single menu hook
change internal release versioning to 1397xx for alpha
[codegen] also look for JsonSchemaBuilder in PATH
[Jsonbuilder] properly mark as built
[buildsteps] pass JSON_BUILDER to bootstrap on rbpi
media: use string-based instead of enum-based MediaType
[win32] update VS project files
[osx] adds media/ to xcode project
[fix] make sure video playlist is empty and current when starting video disc
Merge pull request #3401 from Montellese/mediatype_cleanup

media type related constants handling
Merge pull request #4632 from FernetMenta/pvr

pvr: cosmetics
Merge pull request #4637 from Voyager1/fix-trac15163-bis

[fix] make sure video playlist is empty and current when starting video disc
Merge pull request #4633 from MartijnKaijser/release_versioning

change internal release versioning to 1397xx for alpha
[history] adds IsInHistory() to check if a path is in the history
[ui] when checking if we should return to the current directory or go to a new one when activating a media window, check the history rather than comparing the current path. fixes #15015
Merge pull request #4634 from wsnipex/upstream-master

fix JsonBuilder on rpi
Merge pull request #4485 from jmarshallnz/start_in_history

Start in history - fixes ActivateWindow() links with 'return' specified
videoplayer: adapt lateness detection and dropping to buffering
video player: present correct pts to user for a/v sync (after buffering in renderer)