lib/bb/cache.py: Change debugging note to a debug message

Some apparently debugging was left in in a previous commit.  This caused
bitbake to return a list of bbappends when things changed from the cache.

Make this a proper debug message.

Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Added distroy signal to information dialogs

Added distroy signal to information dialogs
so that when pressing the close button,
the dialog would close.

[HOB #4568]

Signed-off-by: Andrei Dinu <andrei.adrianx.dinu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>