Debian: Add support for xulrunner-26.0
Debian: Switch default xulrunner dependency from 17 to 24

i.e. follow Debian Unstable and make the latest ESR release the
default xulrunner dependency.
help/help.html: rewording

Use the word 'window' instead of 'frame'.  We switched terminology long
ago.
scroll-top-left: fix for xulrunner >= 23

resolves issue450 (see http://bugs.conkeror.org/issue450 for details).
feedly-mode

Implement a page-mode for cloud.feedly.com.
CREDITS: update
Debian package: mention that issue 450 fixes debian bug report #726245
contrib/man/conkeror.1: update man page
CREDITS: update
opensearch_description.completer: do not require hitcount in XML results

The google opensearch webjump has been failing, because google's search
completions service no longer provides the hitcount in their XML results.
tree view changed a bit in 22