sabre/vobject 3.3.3 release

We just released sabre/vobject 3.3.3.

This release has additional fixes and improvements for the iTip subsystem.

This release also works around a PHP bug that would otherwise spam your php error log file with 'invalid timezone' exceptions and has support for the "Line Islands Standard Time" timezone coming from Microsoft products.

Upgrade sabre/vobject by running:

composer update sabre/vobject

If this didn't upgrade you to 3.3.3, make sure that your composer.json file has a line that looks like this:

"sabre/vobject" : "~3.3.3"