textbox block config form attachment chooser closed by default

[Robert Lyon]

Now that one can attach files to a textbox block the list of attachments are displayed whether you want to add an attachment or not.

Would be better if the attachments list was hidden until needed - like what happens in the add journal entry page.

[Mahara Bot (dev-mahara)]

Patch for "master" branch: https://reviews.mahara.org/3280

[Mahara Bot (dev-mahara)]

Reviewed: https://reviews.mahara.org/3280
Committed: http://gitorious.org/mahara/mahara/commit/6ab0eaa4e3914db863a5cc0f6b584bf9532f441e
Submitter: Son Nguyen (<email address hidden>)
Branch: master

commit 6ab0eaa4e3914db863a5cc0f6b584bf9532f441e
Author: Robert Lyon <email address hidden>
Date: Thu Apr 24 08:06:53 2014 +1200

File selector on text box block config form closed by default (Bug #1311860)

Currently it is always open - this patch sets it up to be closed and
allows it to be toggled open/closed

Also aligned the close 'X' to the right

Change-Id: Id92428e5345748826a4640f91f56b268e7b01c47
Signed-off-by: Robert Lyon <email address hidden>