Bug ZK-2160: menupopup shifts position when timer event occurs
Merge pull request #106 from jerrywell/master

refix Bug ZK-2382: Can't select specific date when daylight saving time ...
add release date
1. Fixed jsdoc issue copied from master branch
release 6.5.7
update version to 6.5.8
Merge remote-tracking branch 'upstream/6.5'
Bug ZK-2398: Sortable tree missing sort icon on tree column
refix Bug ZK-2382: Can't select specific date when daylight saving time started at 12:00:00 AM