Initialization of storage elements in Configuration folder is now
done in read-only mode. Modification does not affect these folders
in case of actual storage within them.
Only tested for example posted on bugzilla page.

Added open mode directly into function call.

Change-Id: Ib2b4ae1f4cab35f2c9cd1fc7081302e1231da7a4
Reviewed-on: https://gerrit.libreoffice.org/3401Reviewed-by: Chris Sherlock <chris.sherlock79@gmail.com>
Reviewed-by: Michael Meeks <michael.meeks@suse.com>
Tested-by: Michael Meeks <michael.meeks@suse.com>