Add development mode to better handle runtime exceptions

When the application is started in development mode (i.e. a runtime or system property named org.nuxeo.dev is set) the following exceptions must be handled by stopping the application:

• XML Component parse error.
• Contribution to an unknown extension point.
• Component with an unknown implementation class (the implementation entry exists in the XML descriptor but cannot be resolved to a class).
• Uncatched exception on extension registration / unregistration (either in framework or user component code)
• Uncatched exception on component activation / decativation (either in framework or user component code)
• Broken Nuxeo-Component MANIFEST entry. (i.e. the entry cannot be resolved to a resource)