Compatibility with Piwigo 12

Compatibility with PHP 7.2

New languages:
* Finnish (Finnish [FI])
* Lithuanian (Lietuvių [LT])

check 2.7

Avoid to display copyright twice when metadata are diplayed

New languages:
* Romanian (Română [RO]), thanks to cheilenereinfo

Checked compatibility with Piwigo 2.6

New languages:
* Bulgarian (Български [BG]), thanks to picsvet
* Esperanto (Esperanto [EO]), thanks to sylvbarrier
* Estonian (Estonian [EE]), thanks to Eggy
* Persian (فارسی [IR]), thanks to ipic
* Norwegian (Norsk bokmål [NO]), thanks to abbamust
* Slovenian (Slovenščina [SL]), thanks to MarkoAm, simon.krajnc
* Vietnamese (Việt [VN]), thanks to dummy
* Hong-Kong (中文 (香港) [HK]), thanks to hkdigit

Bug fixed: copyright displayed on the page of the photo and can be edited on the administration page of the photo

New languages: Portuguese Brazil (Português Brasil), Traditional Chinese (中文 繁體)

Checked compatibility with Piwigo 2.5

- Added and update languages
* Türkçe (Turkish TR) Thanks to Nakre
* German (Deutsch DE) Thanks to Polly and duke
* Swedish (Svenska - sv_SE) Thanks to jonas
* Ukrainian (Українська UA) Thanks to animan
* Spanish (Español ES) Thanks to opinador
* Chinese (简体中文 CN) Thanks to quqibing
* Portuguese (Português PT) Thanks to PsyKick_RuhYn
* Russian (Русский - RU) Thanks to yuragal
* Catalan (Català CA) Thanks to AlbertParera
* Greek (ελληνικά GR) Thanks to Vasilis Fotopoulos
* Dansk (Danish - da_DK) Thanks to Kaare

Compatible with Piwigo version 2.3.0

Added slovensky language, thanks to dodo
Updated serveral other languages
Fixed a small bug with single quotes in the copyright name

Added prefilters in the batch manager, to get all images with or without copyrights.

The plugin now supports the extended_author plugin, and has some new languages:
- LV (thanks to Aivars Baldone)
- PL (thanks to kuba)
- CZ (thanks to webprostor.eu)
- HU (thanks to samli)

== Version 1.0 ==
In this version we provide the following features for copyright management:
- Copyrights can be added and edited via the admin page of the plugin
- Copyrights can be assigned to pictures via:
The batchmanager (both global and single mode) --NEW!
The picture modify page --NEW!
- Copyrights will show up when viewing photos, in the descriptions
- Support for the following languages:
EN, NL, FR (thanks to ddtddt), IT (thanks to riopwg), SE (thanks to jonas)

Important bugfix in the admin screen

The copyrights name now is displayed with the image information.

Fixed bug with mass_updates.

Changed Plugin URL to the extension URL for auto-updates.

Same as 0.0.2, but fixed the broken archive.

Fixed minor bug: name of selection group in batch.tpl was misspelled.

TODO:
- Comment the code
- Add Description and Icon to the copyrights
- Show Icon in the gallery (probably as option)

Initial revision