Merge pull request #39 from sitefusion/hotfix/6.1.11

Hotfix/6.1.11
Merge pull request #40 from sitefusion/develop

Develop
Fixed issue that the custom tree fired more than one time the select event
Updated the version file
Fixed DatePicker yield collect and yield bug when element binding was not set
Merge branch 'hotfix/6.2.1' into develop