No exceptions on unfound properties

Fix #8, in multi-module projects throwing an exception makes this plugin unusable.
Good catch. Updated.

On Wed, Nov 19, 2014 at 9:06 AM, Benjamin Muschko <notifications@github.com>
wrote:

> In src/main/groovy/nebula/plugin/override/NebulaOverridePlugin.groovy:
>
> > @@ -1,5 +1,6 @@
> >  package nebula.plugin.override
> >
> > +import com.sun.org.apache.bcel.internal.classfile.Unknown
>
> Are we actually using this import?
>
> —
> Reply to this email directly or view it on GitHub
> <https://github.com/nebula-plugins/gradle-override-plugin/pull/9/files#r20590031>
> .
>