Use proper datetime data in update SQL
Some fixes from the platform
[imp] Create markdown README
 # Merging platform strict standards cache issue.
https://github.com/joomla/joomla-platform/pull/1710
 $ [#30270] Wrong string. Thanks Elin
 $ Updating Installation ini files: de-DE, fa-IR, ko-KR, sk-SK, vi-VN
Typo
 # Updating version for installation language xml
 # [#30265] Make options in the content type field translatable.
 $ Updating Installation ini files: bs-BA, sy-IQ
 # [#30261] Contact tagging not working and contact notice in front end.
Thanks Elin
Changed MooTools based color picker (MooRainbow) to a jquery/bootstrap based colorpicker (miniColors)
Update color.php
Changed MiniColors to Bootstrap template (and customized it a bit)
Merge branch 'colorpicker' of https://github.com/nonumber/joomla-cms into colorpicker
# [#30231] *TAGS: does not filter on language. Thanks Elin
 # [#30283] *Missing filter field parameter for contacts, newsfeeds,
weblinks List All Categories menu items + error in Article categories
menu item
 $ Updating Installation ini files: et-EE, fi-FI, ug-CN, zh-cn
 +$ [#27945] Hide Subcategories text. Thanks Aka.
[#30259] Added (min) height to table cells with context.  Thanks Peter