Notification of string changes

Author: Paul Holden
MDL-75245 tag: implement tags datasource for custom reporting.
Create entity definitions for collections, tags and instances for
new report source to provide data for the reportbuilder editor.


http://git.moodle.org/gw?p=moodle.git;a=commit;h=065b38f68d91187a0448a2980d0dea8488fca0bf
http://github.com/moodle/moodle/commit/065b38f68d91187a0448a2980d0dea8488fca0bf

+ 4.1 en [context,core]
+ 4.1 en [contexturl,core]
+ 4.1 en [itemid,core_tag]
+ 4.1 en [itemtype,core_tag]
+ 4.1 en [namewithlink,core_tag]
+ 4.1 en [tagarea,core_tag]
+ 4.1 en [tagauthor,core_tag]
+ 4.1 en [taginstance,core_tag]