Fix delete row from repeatable group. Fixes #281

### Enhancements

* Updated/Added many translations. Props [fxbenard](https://github.com/fxbenard), ([#203](CMB2/CMB2#344)) and [Mte90](https://github.com/Mte90) for the Italian translation.
* Updated `'file_list'` field type to have a more intutive selection in the media library, and updated the 'Use file' text in the button. Props [SteveHoneyNZ](https://github.com/SteveHoneyNZ) ([#357](CMB2/CMB2#357), [#358](CMB2/CMB2#358)).
* `'closed'` group field option parameter introduced in order to set the groups as collapsed by default. Requested in [#391](CMB2/CMB2#391).
* Added `"cmb2_{$object_type}_process_fields_{$cmb_id}"` hook for hooking in and modifying the metabox or fields before the fields are processed/sanitized for saving.
* Added Comment Metabox support. Props [GregLancaster71](https://github.com/GregLancaster71) ([#238](CMB2/CMB2#238), [#244](CMB2/CMB2#244)).
* New "cmb2_{$field_id}_is_valid_img_ext" filter for determining if a field value has a valid image file-type extension.

### Bug Fixes

* `'multicheck_inline'`, `'taxonomy_radio_inline'`, and `'taxonomy_multicheck_inline'` field types were not outputting anything since it's value was not being returned. Props [ediamin](https://github.com/ediamin), ([#367](CMB2/CMB2#367), ([#405](CMB2/CMB2#405)).
* `'hidden'` type fields were not honoring the `'show_on_cb'` callback. Props [JPry](https://github.com/JPry), ([commits](CMB2/CMB2@5a4146e...1ef5ef1)).
* Fixed: There was no minified cmb2-front.min.css file.
* Fallback for fatal error with invalid timezone. Props [ryanduff](https://github.com/ryanduff) ([#385](CMB2/CMB2#385)).
* Fix issues with deleting a row from repeatable group. Props [yuks](https://github.com/yuks) ([#387](CMB2/CMB2#387)).
* Ensure value passed to `strtotime` in `make_valid_time_stamp` is cast to a string. Props [vajrasar](https://github.com/vajrasar) ([#389](CMB2/CMB2#389)).
* Fixed issue with Windows IIS and bundling CMB2 in the theme. Props [DevinWalker](https://github.com/DevinWalker), ([#400](CMB2/CMB2#400), [#401](CMB2/CMB2#401))

git-svn-id: https://plugins.svn.wordpress.org/cmb2/trunk@1208582 b8457f37-d9ea-0310-8a92-e5e31aec5664

### Enhancements

* Updated/Added many translations. Props [fxbenard](https://github.com/fxbenard), ([#203](CMB2/CMB2#344)) and [Mte90](https://github.com/Mte90) for the Italian translation.
* Updated `'file_list'` field type to have a more intutive selection in the media library, and updated the 'Use file' text in the button. Props [SteveHoneyNZ](https://github.com/SteveHoneyNZ) ([#357](CMB2/CMB2#357), [#358](CMB2/CMB2#358)).
* `'closed'` group field option parameter introduced in order to set the groups as collapsed by default. Requested in [#391](CMB2/CMB2#391).
* Added `"cmb2_{$object_type}_process_fields_{$cmb_id}"` hook for hooking in and modifying the metabox or fields before the fields are processed/sanitized for saving.
* Added Comment Metabox support. Props [GregLancaster71](https://github.com/GregLancaster71) ([#238](CMB2/CMB2#238), [#244](CMB2/CMB2#244)).
* New "cmb2_{$field_id}_is_valid_img_ext" filter for determining if a field value has a valid image file-type extension.

### Bug Fixes

* `'multicheck_inline'`, `'taxonomy_radio_inline'`, and `'taxonomy_multicheck_inline'` field types were not outputting anything since it's value was not being returned. Props [ediamin](https://github.com/ediamin), ([#367](CMB2/CMB2#367), ([#405](CMB2/CMB2#405)).
* `'hidden'` type fields were not honoring the `'show_on_cb'` callback. Props [JPry](https://github.com/JPry), ([commits](CMB2/CMB2@5a4146e...1ef5ef1)).
* Fixed: There was no minified cmb2-front.min.css file.
* Fallback for fatal error with invalid timezone. Props [ryanduff](https://github.com/ryanduff) ([#385](CMB2/CMB2#385)).
* Fix issues with deleting a row from repeatable group. Props [yuks](https://github.com/yuks) ([#387](CMB2/CMB2#387)).
* Ensure value passed to `strtotime` in `make_valid_time_stamp` is cast to a string. Props [vajrasar](https://github.com/vajrasar) ([#389](CMB2/CMB2#389)).
* Fixed issue with Windows IIS and bundling CMB2 in the theme. Props [DevinWalker](https://github.com/DevinWalker), ([#400](CMB2/CMB2#400), [#401](CMB2/CMB2#401))

git-svn-id: https://plugins.svn.wordpress.org/cmb2/trunk@1208586 b8457f37-d9ea-0310-8a92-e5e31aec5664