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*** ptiblogphp history *******************************************************
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ver 20251216
 - setlocale() calls enforce UTF-8 encoding to avoid messed dates in french

ver 20250505
 - minor adjustments for PHP 8 compatibility
 - upgraded dropzone from v5.9.2 to v5.9.3

ver 20230701
 - implemented a search box

ver 20220617
 - an 'icon.png' favicon is being advertised
 - image slider's height is sized relative to the horizontal viewport

ver 20210708
 - articles and welcome message are filtered through a markdown processor
 - welcome message is editable online
 - authentication form features a cancel link
 - UI can be easily localized through settings (defaults to english)
 - format and language of timestamps are configurable
 - configurable jpeg rescaling ($RESIZEJPG_MAXWIDTH and $RESIZEJPG_MAXHEIGHT)
 - title string is properly htmlized (special characters escaped)
 - configurable timezone ($MYTIMEZONE)
 - upgraded dropzone.js from v5.7.0 to v5.9.2
 - improved css styling

ver 20210627
 - improved readability of cursors on the photo slider
 - authentication fails with an explicit message when no password is defined
 - pagination bar is shown only when there are at least 2 pages
 - pagination is reversed (most recent entries land on the last page)
 - lots of css improvements
 - replaced some strings by pictograms to ease future localizations
 - articles are stored in text files under data directory, while the
   per-article directories are used only for attachments now
   MIGRATION NOTE: when migrating from ver 20210622, you have to move all
   "data/$articleid/body.txt" files to "data/$articleid.txt"

ver 20210622 "Summertime"
 - first public release
