FInalise implementation of penalty_regime capability.
Fix broken commit
Fix broken commit (sheesh, another one).
Merge branch 'development'

Conflicts:
	adaptive_adapted_for_coderunner/behaviour.php
	coderunner/db/upgrade.php
	coderunner/edit_coderunner_form.php
	coderunner/lang/en/qtype_coderunner.php
Fix bug in export that resulted in all field, even inherited ones, being exported in all questions.
Moving from Version 2 alpha to Version 2 beta. Several bug fixes (most notably related to errors in the backup and export of customised questions) and the addition of Octave as a supported language.
Add code to display hidden test cases (with 50% opacity) to a user who has the moodle/grade:viewhidden capability on the current course. [Thanks to Ulrich Dangel for suggesting this feature.]
Tweak to user message when hidden test cases fail.
Bug fix in export of prototype questions.
Changes to support scoping of user-defined types and loading of built-in prototypes from a file rather than explicitly in upgrade.php.
Changes to support scoping of user-defined types and loading of built-in prototypes from a file rather than explicitly in upgrade.php (minor documentation tweaks).
Changes to support scoping of user-defined types and loading of built-in prototypes from a file rather than explicitly in upgrade.php (minor documentation tweaks).
Changes to support scoping of user-defined types and loading of built-in prototypes from a file rather than explicitly in upgrade.php (fix PHP incompatibility - SELF versus self).
Changes to support scoping of user-defined types and loading of built-in prototypes from a file rather than explicitly in upgrade.php (a couple more documentation tweaks and PHP incompatibility fiddles).
Fix bug with C programs not compiling on CentOS systems. [Thanks Binoj D].
Fix bug in upgrade from Version 2.0 alpha to Version 2.0 beta (penalty_regime should be a non-null field).
Set all non-inherited question-options fields to non-null to reduce risk of problems with backup and restore of these.
Fix bug in last commit (should have set default values).
Fix textarea bug causing a leading blank line to be trimmed.
Fix typo in comment