Git commits in Moodle 2.7.3 by gdharris

commit cdc2fedcac1edd6e6de536b77fd98ed34d9295c6
Author: gdharris <gdharri2@ncsu.edu>
Date:   Sat, 16 Aug 2014 03:31:48 +0800
Tag:    v2.7.3

MDL-46853 calendar: fix import of no duration events