Navit patch for faster map dragging

[Rod Whitby]

> diff --git a/packages/navit/navit_0.0.4.bb b/packages/navit/navit_0.0.4.bb
> index 104495f..edd4519 100644
> --- a/packages/navit/navit_0.0.4.bb
> +++ b/packages/navit/navit_0.0.4.bb
> @@ -4,4 +4,7 @@ PR = "r0"
> 
>  SRC_URI = "${SOURCEFORGE_MIRROR}/navit/navit-${PV}.tar.gz"
> 
> +DEFAULT_PREFERENCE = "-1"
> +
>  SRC_URI_append +=  "file://navit.xml-so.patch;patch=1"
> +SRC_URI_append +=  "file://font_scaling_patch.diff;patch=1"

You should never set DEFAULT_PREFERENCE to -1 on an already working
recipe, just because you added a better svn recipe.

In addition to this, since you modified the recipe, you should have
changed PR = "r0" to PR = "r1".

It is a common occurrence for there to be multiple working versions of a
recipe in OE.

Use PREFERRED_VERSION and sane-srcrevs.inc to select between alternative
working versions and prefer one for a specific distribution.

-- Rod