[[ Bug 3680 ]] Allow [+|-]<num> in initializers.
[[ Bug 3680 ]] Allow unquoted literals in initializer in explicit variable mode as long as their corresponding constant value is identical to the unquoted literal (case-sensitive).
[[ Bug 3680 ]] Added release note.
Merge pull request #1453 from runrev/bugfix-3680

Bugfix 3680