Git commits in Moodle x.x.x by Thomas Korner

commit f059d1176c3fc94f322f74fb970b00b7838ae273
Author: Thomas Korner <thomas.korner@let.ethz.ch>
Date:   Fri, 05 Apr 2019 19:59:39 +0800
Tag:    v3.5.6

MDL-65279 core: typo in categoriesandcourses fixed

commit 0553a6d90c054e33b0da79abd68edbe6be381892
Author: Thomas Korner <thomas.korner@let.ethz.ch>
Date:   Fri, 05 Apr 2019 19:56:09 +0800
Tag:    v3.6.4

MDL-65279 core: typo in categoriesandcourses fixed

commit ccc1aaed2259e179befd974a32b1905d4377abe3
Author: Thomas Korner <thomas.korner@let.ethz.ch>
Date:   Fri, 05 Apr 2019 19:51:53 +0800
Tag:    v3.7.0-beta

MDL-65279 core: typo in categoriesandcourses fixed