The apostrophe ( ' ) is not considered as a separator

Tested on XWiki.org / Lucene search :

• "test" returns 386 results
• "test's" returns 386 results (seems that the results are the same than for "test")
• "test'l" returns 0 result
• "l'test" returns 0 result

It seems that : "'s" is removed automatically, probably an exception / special case
But for "'l" or "l'" Lucene just consider it as one word : "ltest" "testl"

This behaviour is OK for English search, but in French we have issues like :
"d'accord" "l'arbre"

The pb was signaled by Olivier Hersent for Socracy (with the search "d'acier").