Author: David Monllao
MDL-64500 tool_analytics: No invalid analysables message
http://git.moodle.org/gw?p=moodle.git;a=commit;h=b9249eb3d82c7ef8e1eeea8876c4e8ca9bbb0e3d
http://github.com/moodle/moodle/commit/b9249eb3d82c7ef8e1eeea8876c4e8ca9bbb0e3d
+ 3.7 en [noinvalidanalysables,tool_analytics]