#17 reflective: error handling

// @todo (assira #1) better exception handling

// @todo (assira #1) optional results for really exceptional cases (security exceptions etc)

// @todo (assira #2) more fluent helper methods

• special handling of InvocationTargetException
• special handling of IllegalAccessException

• we do not add more fluent methods now
• we do not want to return defaults/optionals in extreme cases
• error handling is much more predictable, we have common base class IReflectiveException