Author: Andrew Nicols
MDL-69549 core: Add context export API
http://git.moodle.org/gw?p=moodle.git;a=commit;h=deb400c6bf4c9238a81e96960b1573b988df629a
http://github.com/moodle/moodle/commit/deb400c6bf4c9238a81e96960b1573b988df629a
+ 4.0 en [contentexport_aboutthiscourse,core]
+ 4.0 en [contentexport_coursesummary,core]
+ 4.0 en [contentexport_footersummary,core]
+ 4.0 en [contentexport_modulesummary,core]
+ 4.0 en [contentexport_viewfilename,core]