Fix compatibility with piwigo 2.9.2
This version is incompatible with previous 2.9 versions

fix bug for variants containing quotes or apostrophes

New languages:
* Norwegian (Norsk bokmål [NO])
* Ukrainian (Українська [UA])

- improved auto completions for multi word searches
- take into account the AND/OR/() operators (new in piwigo 2.7)
- added variants (synonyms, corrections). For example you can configure: when any of automn, fall is entered then search for both; when johny is entered search also for john ...

- custom suggestions can have now a privacy level (only show to firends, contacts, etc...)
- more sober autocomplete dropdown colors

New languages:
* Swedish (Svenska [SE]), thanks to Blytung, magnus

- compatible with piwigo 2.6

New languages:
* Bulgarian (Български [BG]), thanks to turnokopa
* Czech (Česky [CZ])
* Hungarian (Magyar [HU]), thanks to mionix

language updates

- first version