MDL-46703 mod_data: limit the width of select element when editing templates

Thanks to Hittesh for the provided solution
MDL-46874 gradereport: replace usage of class hidden with dimmed_text
MDL-46887 mod_assign: Enforce module's maxbytes setting at submission.
MDL-46900 theme: allowed more than 1 nav collapse element
MDL-46923 core_behat: fixed typos in function names
MDL-46812 grade/report/grader: Need to tie up loose ends in Gradebook after MDL-43824

commit 47f382e509ec41bed7b0e7c12e7d798d2b5ba2f7
Author: Mary Evans <lazydaisy@visible-expression.co.uk>
Date:   Fri Aug 15 01:47:49 2014 +0100

    MDL-46812 grade/report/grader: Fixes gradebook in 2.6.

    also removed two redundent CSS rules in base/style/grade.css.
MDL-46894 make Behat backup steps more robust.
MDL-46918 ddl: fix error when renaming table already exists
MDL-46918 ddl: cover behavior with unit test
MDL-43918 add more validation to $modulename parameter when fetching cms
Merge branch 'wip-MDL-46703-m26' of git://github.com/marinaglancy/moodle into MOODLE_26_STABLE
Merge branch 'wip-MDL-46812_M26' of git://github.com/lazydaisy/moodle into MOODLE_26_STABLE
MDL-46776 gradereport_grader: Improve Grader report user interface

* Adding assignments to test course generator to more easily test the grader report with large number of students and graded activities.
MDL-46895 qtype_calculated_find_formula_errors not defined causes Calculated question type test to fail
Merge branch 'M26_MDL46887_assignment_file_max_size' of git://github.com/Dave-B/moodle into MOODLE_26_STABLE
Merge branch 'wip_MDL-43918_m26_cm' of https://github.com/skodak/moodle into MOODLE_26_STABLE
Merge branch 'MDL-46923_m26' of git://github.com/markn86/moodle into MOODLE_26_STABLE
MDL-46916 behat: improve question state test.
Merge branch 'MDL-46894_26' of git://github.com/timhunt/moodle into MOODLE_26_STABLE
Merge branch 'm26_MDL-46900' of https://github.com/totara/moodle into MOODLE_26_STABLE