Automatic update of common submodule

From 1a07da9 to fe1672e
docs: dvbsrc: add missed args

Signed-off-by: Stefan Ringel <linuxtv@stefanringel.de>

https://bugzilla.gnome.org/show_bug.cgi?id=725278
docs: mpegts: add missed docs

Signed-off-by: Stefan Ringel <linuxtv@stefanringel.de>

https://bugzilla.gnome.org/show_bug.cgi?id=725278
uridownloader: Warning messages are not fatal

Also they need to be parsed with gst_message_parse_warning(),
gst_message_parse_error() does not work on them.
uridownloader: Fix debug output to describe the new reality
hlsdemux: Unref seek events before returning from the seek handler

Otherwise we leak them all.
hlsdemux: Init and clear a mutex

GLib initialises automatically for us for some reason... but of course
does not clear the mutex once the demuxer is destroyed.
id3tag: Remove unused function to fix compiler warning
openalsrc: Remove unused function to fix compiler warning
mpegdemux: Don't write after the end of the psm array when initialising it
Automatic update of common submodule

From fe1672e to bcb1518
hlsdemux: Segfaults if playlist has no media files

hlsdemux causes a null pointer dereference if the media playlist
does not contain any media files. The gst_m3u8_client_get_duration
function assumes that demux->client->current->files is valid when
computing duration.

gst_m3u8_client_update needed to be modified to check for the
case of downloading an M3U8 file that doesn't contain any media
files, and returning an error to gsthlsdemux.c

This bug can be reproduced by creating a master m3u8 file that
contains one media playlist that points back to the master m3u8
file.  For example create a file called bug725134.m3u8:
  #EXTM3U
  #EXT-X-VERSION:4
  #EXT-X-STREAM-INF:PROGRAM-ID=1, BANDWIDTH=1251135, CODECS="avc1.42001f mp4a.40.2", RESOLUTION=640x352
  bug725134.m3u8

https://bugzilla.gnome.org/show_bug.cgi?id=725134
srtpenc: unref caps after gst_query_set_caps_result

https://bugzilla.gnome.org/show_bug.cgi?id=725412
hlsdemux: Implement proper handling of discontinuities

It's not really correct yet for seeks but better than what
we had before.

See https://bugzilla.gnome.org/show_bug.cgi?id=695846
.gitignore: Ignore gcov intermediate files

https://bugzilla.gnome.org/show_bug.cgi?id=725481