#37 PHP 8 compatibility

#36 Collection list display with modus
#37 PHP 8 compatibility
#38 Update placeholder for collection thumbnail

#34 Warning (countable) on sending an email to share a collection
#35 warning in share by email

Speed improvement on detecting if Gthumb+ is active

Gthumb compatibility with Bootstrap Darkroom

New languages:
* Icelandic (Íslenska [IS])
* Japanese (日本語 [JP])

* Compatibility with Piwigo 12
* Better compatibility with Modus and Bootstrap Darkroom (by Zacharie Guet)

- Fix Deprecated warning on PHP 7.2
- Language updates

- add button "add all photos of album"
- themes can overwrite menubar template


New languages:
* Norwegian (Norsk bokmål [NO]), thanks to paulen
* Serbian (Српски [SR])

Compatible with Piwigo 2.7

Fixed: "missing images_ids parameter" on picture page

New languages:
* Mongolian (Монгол хэл [MN]), thanks to Ulzii

fixed: not working properly with Thumbnail Scroller

fixed: export page not working

fixed: missing thumbnails pagination
new: add collections pagination depending on gallery parameter (number of albums per page)

Technical fix for PHP < 5.3

Update for Piwigo 2.6

Clean template variables for better integration with themes

New languages:
* Vietnamese (Việt [VN]), thanks to dummy

Updated for Piwigo 2.6.

Fixed: fatal error when accessing deleted collection with BatchDownloader

New languages:
* Arabic/Saudi (العربية [AR]), thanks to aldambi
* Lithuanian (Lietuvių [LT]), thanks to vilisas

Fixed: fatal error when accessing deleted collection with BatchDownloader

hotfix for 2.1.0 : fatal error when sending email

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completely new way to share collections, one can create different share links with password and expiration date

fixed: lightbox conflicts

new languages: ro_RO, zh_HK, sl_SI, eo_EO

new interface :
- collections page uses the same layout as albums page
- remove the "active collection" parameter
- display a drop-down menu with available collections when adding a new image
- collections can have a description
- add pwg.collections.getInfo API method

TEST VERSION

new interface :
- collections page uses the same layout as albums page
- remove the "active collection" parameter
- display a drop-down menu with available collections when adding a new image

fixed: "download" link on main page don't return "Invalid Collection" error
new languages: zh_TW, sv_SE

fix caddie button,
fix fatal error for Back2Front
update ZeroClipboard
fix breadcrumb and body_id
unactive for mobile themes
fix display issues

new languages: et_EE, bg_BG

new: users can send their public collection by mail
new: admins have a list of all collections and can export them in CSV
new: 7 WebServices methods for developpers
new: sort, photo size and caddie buttons are available on collection pages

fixed: display compatibility with Gthumb+ and Simple themes

warning: if you get errors, please purge compiled templates in Tools->Maintenance

fixed: better display with Simple and Stripped themes
improve upgrade process

new languages: pt_PT, zh_CN, fa_IR

- Compatible with $conf['question_mark_in_urls'] = false;
- new languages: da_DK, it_IT, uk_UA

- Added 5 new languages

- Production version

/! if you update from beta1, please do a plugin restoration

- use a random public id, instead of real id, preventing to access others collections
- use colorbox to browse inside a collection
- menu redesigned
- small fixes
- 6 new languages

TEST VERSION