This is legacy behaviour which does not often reflect the expected behaviour of the current editor. indent and outdent can (in some situations) prefer to use margin instead of padding. sapphiremce_cleanup faultily assumes that such indented text should be block quoted, and replaces this with a block quote element. This is not necessary, since the blockquote element can be placed explicitly by the user when necessary.
To replicate the incorrect indentation behaviour, configure tinymce to use the 'lists' plugin (via admin/_config.php) and attempt to indent some text. Indented text will be unexpectedly replaced with blockquotes.
Default to "yyyy-MM-dd" for date format, and "H:mm" for time_format.
Switched to config API for setting/getting values.
Avoid using "MMM" in particular, since it causes
inconsistencies in month names between jQuery UI and Zend_Locale_Format.
Fixes https://github.com/silverstripe/silverstripe-cms/issues/544
It doesn't make a lot of sense to limit the listing
to assets/Uploads/, which is the default set through FileField->folderName.
Showing all files regardless of folder makes them easier
to find, users can still opt-in to filtering by folder
through the TreeDropdownField.
DataObject::validate() is currently set to protected, but this means
you can't call validate() from outside the context of itself unless
you overload the method to use a public visibility and then call
parent::validate()
As it would turn out, most classes that overload this method already
set the visibility to public, so it would make sense the parent matches
that as well.