Compatibility with Piwigo 12

Compatibility with MySQL 8 (escape word "groups"). Thanks to erAck

#3 prepare compatibility with Bootstrap Darkroom theme (let the theme use its own templates)

better way to fix the sub-tab issue (introduced with higher security checks in Piwigo 2.9.1)

fixes #1, invalid "page" url param with Piwigo 2.9.1

* speed improvement with the new persistent_cache (new in Piwigo 2.7)
* compatibility PHP 7
* compatibility MySQL 5.7

Bug fixed on link edit

Compatible with Piwigo 2.7

Strong speed improvements for Random Picture in menu (for big galleries)

Compatibility with Piwigo 2.6

New languages:
* Bulgarian (Български [BG]), thanks to Martian
* Catalan (Català [CA]), thanks to josep.torne, ddtddt, AlbertParera
* Danish (Dansk [DK]), thanks to Kaare
* Greek (Ελληνικά [GR]), thanks to bas_alba, ddtddt
* Esperanto (Esperanto [EO]), thanks to sylvbarrier
* Persian (فارسی [IR]), thanks to ipic
* Norwegian (Nynorsk [NO]), thanks to kiho
* Turkish (Türkçe [TR]), thanks to LazBoy
* Ukrainian (Українська [UA]), thanks to animan
* Traditional Chinese (中文 (繁體) [TW]), thanks to azq1231

* Checked compatibility with Piwigo 2.5
* Custom menus are compatible with Extended Description plugin syntax
* new language Portuguese Brazil (Português Brasil)
* compatibility with PHP 5.4
* random picture not computed for search engine robots

- Fixed bug of incorrect Hungarian (Magyar HU) language file.

This release include following features/bugs fix:
- bug:2696 => When applying config on "random pict", admin page is blocked on waiting icon

This release include following features/bugs fix:
- bug:2695 => In admin page, it's not possible to manage "random pict"

This release include following features/bugs fix:
- feature:2642 => Compatibility with Piwigo 2.4
- bug:2371 => User access management don't work if user is linked to a group
- bug:2522 => Incompatibility with other plugin managing the menu content

This release fix the bugs:
- bug:2281 => Custom language value is use in queries unescaped (security bug)
- bug:2311 => broken javascript if random pic set is empty
- bug:2312 => randomPictureJS is loaded even if menu is hidden

Add language :
- sv_SE (Swedish)

Fix bug :
- bug:2275 => install doesn't create tables

This release provide new feature and bug fix:
- feature:2144 => Compatibility with Piwigo 2.2
- bug:2181 => random picture : problem with double-quote "
- bug:2182 => links and personnal blocks : double quote are not correctly managed
- bug:2166 => Error message on gallery side about create_table_add_character_set()

CAUTION: BEFORE UPDATING THE PLUGIN, YOU NEED TO UPDATE FIRST THE PLUGIN "GrumPluginClasses"(version 3.4.2)

Fix bug:
- bug:2166 => Error message on gallery side about create_table_add_character_set()

CAUTION: BEFORE UPDATING THE PLUGIN, YOU NEED TO UPDATE FIRST THE PLUGIN "GrumPluginClasses"(version 3.4.2)

Fix bugs linked with release 3.0.0 :
- bug:2157 => Personalised blocks : title & content are inverted
- bug:2158 => Album to menu : error message about number of pictures
- bug:2159 => Update process : users acess is not managed on links
- bug:2162 => Personalised blocks : when adding a new block, previous title & content are not reseted
- bug:2163 => Update process : error message on gallery side
- bug:2165 => Database schema not completely updated
+ small bugs from update process and not referenced...

Fix bugs and new features :
- feature:1296 => add permissions for managing personal menu
- feature:1477 => possibility to pre-select the "random images"
- bug:1680 => Warning if a new lang is added in Piwigo
- feature:1709 => change title links by sub tabs
- feature:1723 => Display links using user access right
- bug:1776 => Unable to set access for the administrator
- bug:1910 => Incompatibility with Internet Explorer 7 (partially fixed : works, but looks a little bit ugly)
- feature:2052 => Convert album to menu
- feature:2128 => Random picture : preload a set of picture
- feature:2129 => User & group access management is not consistent

Plugin interface is rewritten (using ajax)
Not that the permission system is changed : now, checked users and checked groups are designed as allowed ; unchecked items don't have access to features.

Add language :
- Norwegian [NO]
Thanks to translator

Add langs :
- العربية [AR]

thanks to translator

Add languages :
- Latviešu [LV]
- Русский [RU]

New language cs_CZ - Česky - Czech thanks to webprostor
New language hr_HR - Hrvatski - Croatian thanks to LuxZg
New language nl_NL - Nederlands - Dutch thanks to Kees Hessels
New language sk_SK - Slovak - Slovensky thanks to dodo

Compatibility with 2.1 Piwigo
Requires the plugin Grum Plugin Classes 3.0.0

Evolutions & Fixed Bugs:
1384: have more characters for titles on the customized sections
1476: error message on login screen
1541: the order of elements is not respected

Fix an error message about an undefined var 'tabsheet' displayed on
the admin panel (bug:1336)

Fixed a bug on the management of random images (bug:1331)

Add the zh_CN language (mzs777)
Update the hu_HU language (sámli)

Fix bugs from the release 2.1.3 :
- Allows to manage access for the 'Admin' users
- Users 'Webmaster' aren't managed
- AMM don't works properly if a block 'menu' or 'specials' is hidden


Warning : to install the release 2.1.4, you need to update the plugin Grum Plugin Classes to release 2.0.4

This version allows you to:
- Rearrange the order of the elements of blocks "menu" and "special"
- Move the elements blocks "menu" to "special" and vice versa
- Manage the display elements by a rights management users / groups
- Compatibility with the theme 'Montblanc'

Warning => Requires Grum Plugin 2.0.3 Classes!
Warning => Incompatible with the lightbox plugin 2.0.c

Added translations:
Spanish
Hungarian (thank you to sámli)

Warning => needs Grum Plugin Classes 2.0.3 !!
Warning => Incompatibility with the plugin Lightbox 2.0.c !!

Bugs resolved :
- random picture is preloaded before the first ajax call assuming the display of a thumbnail even if javascript is disabled on the browser (cf. post:116807 on french forum)
- give the possibility to choose between an automatic and a fixed height for the block menu (cf. post:116804 on french forum)
- compatibility with Sylvia theme (cf. post:116800 on french forum)

Warning => needs Grum Plugin Classes 2.0.3 !!


Evolutions :
- possibility to have a periodic (between 0.5s et 60s) change of the random picture

Bugs resolved :
- Permission & privacy level management (topic:14374 & post:107877 from french forum)

This release is fully fonctionnal only with piwigo 2.0.0RC4 or higher