Let user force creation of a source
When the source manager portlet has access to internet, it checks whether or the provided URLs are valid before inserting them in the knowledge base. Sometimes the provided URL seem not valid in the context of the source-manager while it works fine in the context of the system in charge of gathering the sources (heritrix). This is most of the time due to either a timeout or an invalid URL encoding.
In both case, the user shall be able to force the insertion of the source in the knowledge base (for the moment it is rejected and the only way in add the source is to do an import/export).