Git commits in Moodle 2.7.6 by Marina Glancy

commit f7022871881700002ac5f194ade96884d6ada3ad
Author: Marina Glancy <marina@moodle.com>
Date:   Fri, 06 Feb 2015 12:42:10 +0800
Tag:    v2.7.6

MDL-47558 resource: allow to edit module without being redirected

commit 7a6581f6c2a17fcbcf4362c04c868521b02c7526
Author: Marina Glancy <marina@moodle.com>
Date:   Tue, 03 Feb 2015 10:37:42 +0800
Tag:    v2.7.6

MDL-49003 login: prevent signup when user is logged in

commit cd060b5fe2b5d90ff87d3b345e5f802ef143f883
Author: Marina Glancy <marina@moodle.com>
Date:   Tue, 13 Jan 2015 10:43:34 +0800
Tag:    v2.7.6

MDL-48804 core: do not set current course until login validated

commit 154685629a4c53b4c3b38e6c68b3bddb42b87b49
Author: Marina Glancy <marina@moodle.com>
Date:   Mon, 12 Jan 2015 16:16:14 +0800
Tag:    v2.7.6

MDL-48794 report_log: make sure y-axis gridlines in graphs are integers