Plone.app.textfield

------------------

* Fix an error that could occur if the user did not have an editor preference
set.
[optilude]

* Fix tests on Plone 4.
[optilude]

* Add field factory for use with plone.schemaeditor (only configured if that
package is installed).
[davisagli]

------------------

* Update README.txt to be in line with reality.
[optilude]

* Fix the text-transform view to work with path traversal.
[optilude]

------------------

* Add plone.rfc822 field marshaller. This is only configured if that package
is installed.
[optilude]

------------------

* Store the raw value in a separate persistent object in the ZODB instead of
in a BLOB. This avoids potential problems with having thousands of small
BLOB files, which would not be very space efficient on many filesystems.
[optilude]

* Make the RichTextValue immutable. This greatly simplifies the code and
avoids the need to keep track of the parent object.
[optilude]

------------------

* Initial release