Resolve "evince: print shortcut doesn't work when outline is focused"

Don't send Ctrl and Alt accels to sidebar, as they may be handled by GtkTreeView or other sidebar focused widgets, while we want them to reach the main EvApplication accels.

We except GtkEntry's (eg. cell tex editing in tree views) as eg. Ctrl+L accel should be handled by GtkEntry instead of rotating document.

Issues #860 (closed) and #795 (closed)

Closes #860 (closed) Closes #795 (closed)