MAJOR:

1. Support for the explicit subtype constraints:
	Name ::= IA5String (FROM("A".."Z"))
   Status: in progress.

2. Support for Information Object Classes.
   Status: support for parsing IOCs is mostly present. Support for slicing
   the IOCs to produce "views" is not yet designed.

3. Support for PER encoding. Requires advanced subtype constraints support (#1)

4. Support for XER encoding.

MISC:

1. Make sure asn1_DEF_<TYPE>_tags is not an empty structure.