* APL record: add structure and code point
* APL record: add wire format support
* APL record: add presentation format support
* APL record: add isDuplicate implementation
* APL record: add copy implementation
* APL record: add len implementation
* APL record: run go generate
* APL record: fix condition checking for equality
* APL record: use switches to map family to address length
* APL record: check bounds of individual fields rather than whole header
* APL record: stylistic changes
* APL record: remove APLPrefix methods from public interface
* APL record: update README
* APL record: additional cleanup for code review
* APL record: change return type from pointer to struct
* APL record: refactor of pack and unpack to eliminate extra variables
* Prevent IsDuplicate from panicing on wrong Rrtype
* Replace the isDuplicateRdata switch with an interface method
This is substantially simpler and avoids the need to use reflect.
* Add equal RR case to TestDuplicateWrongRrtype
* Move RR_Header duplicate checking back into IsDuplicate
This restores the previous behaviour that RR_Header's were never
equal to each other.
* Revert "Move RR_Header duplicate checking back into IsDuplicate"
This reverts commit a3d7eba50825d546074d81084e639bbecf9cbb57.
* Run go fmt on package
This was a mistake when I merged the master branch into this PR.
* Move isDuplicate method to end of RR interface
DesWurstes
Jan Včelák
Dmitry Zubarev
Tom Thorogood
Miek Gieben