swiz/swiz-framework — pull request #27 by brian428 (2011-11-02 17:40:38+00:00)
Title: Fix SWIZ-62 by ensuring bean source is not null before attempting tear down

Fix SWIZ-62 by ensuring bean source is not null before attempting tear down.

Basically a simple fix for http://swizframework.jira.com/browse/SWIZ-62, where removing a bean will later cause an error when the Swiz instance is torn down (because the removed bean in the BeanProvider now has no source).