* disabled checkstyle since it's not needed here

XCOMMONS-662: DefaultConverterManager should directly return the value if it's already an instance of the passed type

* Fixed checkstyle error introduced in previous commit

* Reset XWiki Context so that no "exception" value remains in it.

* Prove that it fails

* Improve algorithm

[Misc] Fix test. Funnily doing a "ping host" locally now resolves to 127.0.53.53... See https://www.icann.org/news/announcement-2-2014-08-01-en and http://serverfault.com/questions/626612/dns-just-started-resolving-my-server-prod-addresses-to-127-0-53-53

XWIKI-11067: Add ability to catch exception from velocity scripts
XWIKI-11050: Do not fail the UI when there's a problem rendering the document's content
* Document title

* more javadoc