Author: Luca Bösch
MDL-82555 block_section_links: Add section title only setting.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=64f7cf32e5e8366589b78ade5f00c5194c8ca7cf
http://github.com/moodle/moodle/commit/64f7cf32e5e8366589b78ade5f00c5194c8ca7cf
+ 5.0 en [showsectionname_help,block_section_links]