Git commits in Moodle 2.8.7 by Adrian Greeve

commit 1d19128f68bbc8578092e8773e5d23766e8ea6ca
Author: Adrian Greeve <adrian@moodle.com>
Date:   Fri, 03 Jul 2015 11:43:57 +0800
Tag:    v2.8.7

MDL-50757 gradebook: Update fix for pre 2.8 upgrades.

commit 801964cabb3a7527eede8c820bfec63417a13dbb
Author: Adrian Greeve <adrian@moodle.com>
Date:   Thu, 02 Jul 2015 11:51:06 +0800
Tag:    v2.8.7

MDL-48239 gradebook: Oracle fix for string compare.

commit 1a9f295e4761adcb74d268aa3509dbeca3cebb84
Author: Adrian Greeve <adrian@moodle.com>
Date:   Mon, 29 Jun 2015 14:39:11 +0800
Tag:    v2.8.7

MDL-48239 gradebook: Change to calculated grade item min and max.

commit 2adc935709b33a688b48207b77914c8cabb18925
Author: Adrian Greeve <adrian@moodle.com>
Date:   Tue, 23 Jun 2015 13:45:01 +0800
Tag:    v2.8.7

MDL-48239 gradebook: Unit test for upgrade function.

commit 02bc1d3b881d8977a5856f2e5b4c495848e1e3db
Author: Adrian Greeve <adrian@moodle.com>
Date:   Fri, 19 Jun 2015 16:39:20 +0800
Tag:    v2.8.7

MDL-48239 gradebook: Calculated grades maxgrade now able to be set.

commit 98c04f38cdf18676bf94f7bcd0cc0ab6e83e8b28
Author: Adrian Greeve <adrian@moodle.com>
Date:   Fri, 19 Jun 2015 16:38:57 +0800
Tag:    v2.8.7

MDL-48239 gradebook: Behat tests for calculated grade items.

commit cfa002f6eef530a390cd137e0acf679d8328fd24
Author: Adrian Greeve <adrian@moodle.com>
Date:   Mon, 11 May 2015 10:17:29 +0800
Tag:    v2.8.7

MDL-49742 lib: Removed additional names on tables for sorting.