More fixes for errors / crashes / misbehaviour with content changes

and the butler.

Here we signal both before and after a change in content.  Before,
the player disables itself so that any pass()/seek() will be no-ops.
After, the player rebuilds its pieces and the butler re-seeks to
get back to where it was before the change.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/lib/wscript b/src/lib/wscript
index 0cc3d7823..68e44ccd0 100644
--- a/src/lib/wscript
+++ b/src/lib/wscript
@@ -47,6 +47,7 @@ sources = """
           colour_conversion.cc
           config.cc
           content.cc
+          content_change.cc
           content_factory.cc
           cross.cc
           curl_uploader.cc