Author: Frederic Massart
MDL-44125 atto_align: New plugin for text alignment
http://git.moodle.org/gw?p=moodle.git;a=commit;h=acc94f70c840982b9952f51d4cecd219bf526d17
http://github.com/moodle/moodle/commit/acc94f70c840982b9952f51d4cecd219bf526d17
+ 2.7 en [center,atto_align]
+ 2.7 en [leftalign,atto_align]
+ 2.7 en [pluginname,atto_align]
+ 2.7 en [rightalign,atto_align]