Changes

Summary

1. add user option to open new views in foreground (details)
2. move frontend specific option focus_new to generic foreground_new (details)

Commit 0f077d82f856db76bc02a5aecf9eca8a55cab5f5 by Vincent Sanders add user option to open new views in foreground
	desktop/options.h (diff)
	desktop/browser_window.c (diff)
Commit 2875136440605f3687d0e95b6e31e6bc09f55e6f by Vincent Sanders move frontend specific option focus_new to generic foreground_new
	frontends/gtk/preferences.c (diff)
	frontends/gtk/res/gtk2/options.ui (diff)
	docs/netsurf-gtk.1 (diff)
	test/data/Choices-all (diff)
	frontends/monkey/options.h (diff)
	frontends/gtk/res/gtk3/options.ui (diff)
	frontends/gtk/window.c (diff)
	docs/netsurf-fb.1 (diff)
	test/data/Choices (diff)
	frontends/gtk/options.h (diff)