* Separated Admin Controller into a generic and extendable Base controller. Added Autoload for properly loading classes
* Implemented custom class loader to force lowercase
* Removed composer autoloader for classes
* Updates
* Ability to pass custom upload URL for files
* Added new onAdminCanSave event for 3rd party plugins
* Moved files upload GC in onOutputGenerated event
* Cleanup
* Moved autoloader so it is always registering
* Fixed onOutputGenerated event location
* Moved `taskRemoveFileFromBlueprint`, `taskRemoveMedia `, `canEditMedia` methods to admin base controller
* Allow to globally define `blueprint_type` and `file_url_remove` for the file field
* Moved `isMultilang()` into base controller
* Properly generate thumbnails in proportions for file fields
* Simplified execute restrictions with blacklist
* Reworked the `file` field. All files get uploaded via Ajax and are stored upon Save
This improves the Save task tremendously as now there is no longer the need of waiting for the files to finish uploading. Fully backward compatible, `file` field now includes also a `limit` and `filesize` option in the blueprints. The former determines how many files are allowed to be uploaded when in combination with `multiple: true` (default: 10), the latter determines the file size limit (in MB) allowed for each file (default: 5MB)
* Added support for `accept: [‘*’]` to allow any file type
* Minor tweaks in the comments and messages
* Delete any orphan file when discarding the uploaded files session
* Minor optimization
* Fixed issue with `_json` elements where nested fields merging would get stored in an unexpected way
* Potential fix for wrong order of value in Datetime
* Fixed nested fields for files
* Fixed tmp streams
* Minor cleanup
* Update JSON data when removing a file. Implemented task to remove files that haven’t been saved yet, from the flash object session
* Ensure temporary files are deleted when removing un-saved files from the flash object session
* Fixed wrong reference of HTML file field when clicking on the drop zone area to pick a file
* Added JSON template for pages
* fix a CSS issue in page order
* More CSS fixes
* Trigger file field mutation when adding or removing a file
* Recompiled JS
* Removed twig templates that are no longer needed
* Fixed issue with nested header fields in a page, not properly merging data
* [internal] Fixed issue with collections not capable of handling both param and dot notations at the same time
* Reorganized FileField structure to be more consistent with the other fields
* Added support for dynamically created file fields (ie, autoinitialization on new lists items)
* Added translationable strings for file uploads errors
* Added translasions for all Dropzone available strings
* Changed default values
* various improvements.. needs cleanup
* more progress - supports deeply nested + pages
* Getting close now!
* more progress!
* some cleanup
* use data[_json] to store page-based upload
* Smarter logic to get nested form fields
* some refactoring/cleanup
* Fixed issue with removing multiple files in pages
* Refactor and support `destination: page@:/images` and `destination: self@` syntax for file fields
* Prettifying the upload field
* Handling Files API to better represent the selected files in the input field
* Better plurarl string
* Fixed harcoded height for input field
* revamped CSS!!!
* `fancy: false` turns off fancy styling
* Create folder if not exists
* Add support for @theme/theme@ destination
* Fixed create directory functionality to take into account resolved paths
* Don't allow @self on page to be uploaded to if not created
* added field languages
* css tweaks
* language integration
* refactor
* Added support for multiple files
* fixed appearance a bit
* Always store files as full path => obj data
* added some error handling
* Do not go nested when storing file
* Refactored to not need blueprint set in blueprint
Add removing files from a blueprint to Admin, moved from Pro. Drop
`showuploaded`, `ispluginconfig`, `showuploadedpreview` options from
the File field. Added a "blueprint" option to specify the field name
and type, e.g. `plugins.admin` or `themes.antimatter`. Dropped the
multiple option, as it'd need more handling that now it's not there.
