Allow to set indexing language per project

note: = (equal) sign is used to improve readability

we often use =l'=, =d'=, followed by a word (samples: l'homme, 'autre, etc).
in french, these are two words, and searching for =homme= should return
issues where =l'homme= appears.
unfortunately, Jira (lucene?) does not work correctly and returns issues with =l'homme= only if =l'homme= is used...

how can I work around this?

note: if setting up lucene with french behaviour is possible, it would not be that good, since some projects are in english, and some other in
french...