[BUGFIX] Endless loop in linkhandler

When interpreting link-type fields in extensions, linkhandler
enters an endless loop. Some TS configuration must be unset,
but this is not done thoroughly enough.

See http://forge.typo3.org/issues/26780

Fixes #4
Remove inclusion of interface

The inclusion of the interfaces was using a removed constant.

On the other side, the inclusion of classes is not needed, thanks to the autoloader
Raise TYPO3 version
Merge remote-tracking branch 'origin/patch-1'
Merge branch 'master' of github.com:AOEpeople/linkhandler

Conflicts:
	class.tx_linkhandler_handler.php
	service/hook/class.tx_linkhandler_localRecordListGetTableHook.php
Fix validation of link when sys_language_uid not set
Merge branch 'master' of github.com:AOEpeople/linkhandler
Fallback to page id when showing hidden pages
Merge branch 'master' of github.com:Bolius/linkhandler