Better error handling when react-docgen cannot parse component source.
Better error handling when react-docgen cannot parse component source.

Log error to the terminal, do not stop style guide generation.

sourcejs/sourcejs-react-styleguidist,styleguidist/react-styleguidist,sapegin/react-styleguidist,sourcejs/sourcejs-react-styleguidist,styleguidist/react-styleguidist,styleguidist/react-styleguidist,bluetidepro/react-styleguidist,sapegin/react-styleguidist,panayi/react-styleguidist,panayi/react-styleguidist,psachs21/react-styleguidist