Author: Petr Škoda
MDL-44824 add missing subplugin type names
http://git.moodle.org/gw?p=moodle.git;a=commit;h=1ac1d97c9fcaa6af4b88df09878cea3c67273adf
http://github.com/moodle/moodle/commit/1ac1d97c9fcaa6af4b88df09878cea3c67273adf
+ 2.5 en [subplugintype_tinymce,editor_tinymce]
+ 2.5 en [subplugintype_assignsubmission,mod_assign]
+ 2.5 en [subplugintype_assignsubmission_plural,mod_assign]
+ 2.5 en [subplugintype_assignfeedback,mod_assign]
+ 2.5 en [subplugintype_assignfeedback_plural,mod_assign]