v1.2.0

Enhancements

• Add support for custom date/time formats. Props @Scrent. (#506)
• Simplify wysiwyg escaping and allow it to be overridden via the escape_cb parameter. (#491)
• Add a 'Select/Deselect all' button for the multicheck field type.
• Add title option for repeatable groups. Title field takes an optional replacement hash, "{#}" that will be replaced by the row number.
• New field parameter, show_on_cb, allows you to conditionally display a field via a callback. (#47)
• Unit testing (the beginning). Props @brichards and @camdensegal.

Bug Fixes

• Fixed issue where remove file button wouldn't clear the url field. (#514)
• wysiwyg fields now allow underscores. Fixes some wysiwyg display issues in WordPress 3.8. Props @lswilson. (#491)
• Nonce field should only be added once per page. (#521)
• Fix in_array issue when a post does not have any saved terms for a taxonomy multicheck. (#527)
• Fixed error: 'Uninitialized string offset: 0 in cmb_Meta_Box_field.php...`. Props @DevinWalker. (#539, #549))
• Fix missing file field description. (#543, #547)