The Events Calendar - Eventbrite Tickets 4.6.16

* Fix - Prevent errors when using `Cron` as mechanism for imports. [EBT-107]

* Tweak - Changed language: "Leave this event associated with eventbrite.com?" to "Sync this event to eventbrite.com when updating?" [EBT-83]
* Tweak - Changed views: `eventbrite/eventbrite-meta-box-extension`
* Fix - Choosing to not sync updates to Eventbrite will now retain its setting. [EBT-83]
* Fix - Choosing to not sync updates to Eventbrite no longer removes the setting to show tickets. [EBT-83]
* Language - 28 new strings added, 72 updated, 0 fuzzied, and 1 obsoleted

* Fix - Update of events when your owned events are updated on Eventbrite. [EBT-85]
* Fix - When the price changes on your imported events the changes updates are reflected back to your imported events. [EBT-85]
* Tweak - Import the featured images of the events on the background to prevent crashes on larger set of images [EBT-89]
* Tweak - Extend views from The Events Calendar into Eventbrite plugin to allow updates directly into the plugin instead [EBT-77]