Git commits in Moodle 2.8.7 by Frederic Massart

commit 3423321b32ff6e7faac546021143a42c1c765e63
Author: Frederic Massart <fred@moodle.com>
Date:   Wed, 24 Jun 2015 15:45:16 +0800
Tag:    v2.8.7

MDL-50569 grades: Restore as merge always ignores minmaxtouse

commit 7610449b02354c8384e77e28f97463fe1673daeb
Author: Frederic Massart <fred@moodle.com>
Date:   Fri, 12 Jun 2015 12:52:34 +0800
Tag:    v2.8.7

MDL-50569 grades: Handle minmaxtouse in backup/restore

commit 623ecdaddb9ef0407a23595d4b4f5afb1c87924b
Author: Frederic Massart <fred@moodle.com>
Date:   Thu, 11 Jun 2015 16:22:01 +0800
Tag:    v2.8.7

MDL-48618 grades: Do not run minmax upgrade for fresh installs

commit 965271de64acb9e151c19ddd4505f41d88dc1609
Author: Frederic Massart <fred@moodle.com>
Date:   Wed, 10 Jun 2015 12:16:16 +0800
Tag:    v2.8.7

MDL-48618 grades: Test for the minmax upgrade step

commit 4c796650e68e7ab52dbd68e1d598c3a054d661ab
Author: Frederic Massart <fred@moodle.com>
Date:   Fri, 05 Jun 2015 11:51:23 +0800
Tag:    v2.8.7

MDL-48618 grades: Behat tests to cover min/max grade changes

commit eff9e9ddea6d2ecea80da11744b3641e39a0fd55
Author: Frederic Massart <fred@moodle.com>
Date:   Thu, 04 Jun 2015 17:57:18 +0800
Tag:    v2.8.7

MDL-48618 grades: Unit tests for grade_grade::get_min/max_grade()

commit 79076898250b1e7fe9cf5b5b2748e7cf6afeb192
Author: Frederic Massart <fred@moodle.com>
Date:   Thu, 04 Jun 2015 17:56:37 +0800
Tag:    v2.8.7

MDL-48618 grades: Handling of inconsistencies due to min/max grades