6.10.0

• The field method Field::setConfig() returns self
• If a field value is an empty strings and null values are allowed, save null.
• Fixed tests in php 7
• Fixed other bugs.

Breaking changes

• Removed File field, and moved to a different repository: https://github.com/oscarotero/simple-crud-extra-fields
• Added magic properties to Table, that returns the Field instances. For example: $simplecrud->post->id.
• Replaced the property $table->name by the method $table->getName()
• Removed the property $table->fields. Use the magic method to get a specific property or $table->getScheme()['fields'] to get the list of all fields.