Bug fixes

Changes since 7.x-1.0-rc3:

Issue #2975987 by bandanasharma, ipwa: Coding standard issues with some files

Changes since 8.x-1.0

• view commit • Issue #3003084 by chipway, alonaoneill: Dependencies must be prefixed + capitalize name + dot

Resolves #2871478: Fatal error in akamai_get_client()

Fixes several bugs.

• In particular, fixes error when first installing the module or updating from an older version.

Also adds new features:

• Role and menu fields are now selection fields (dropdowns), not text fields
• Disallows duplicate pairs