Allow multiple namespace() calls with the same name to not override each other. #144
Allow multiple namespace() calls with the same name to not override each other. #144

The original behavior is that calling namespace() multiple times with
the same name will cause the old namespace to be overridden.

This commit makes it so that instead of the old namespace being
overridden, it is extended. This is the same as when calling
task() multiple times.

kedashoe/jake,talves/jake,vinodpanicker/jake,talves/jake,kedashoe/jake,cesarmarinhorj/jake,kedashoe/jake,vinodpanicker/jake,talves/jake,vinodpanicker/jake,jakejs/jake,cesarmarinhorj/jake,cesarmarinhorj/jake,jakejs/jake