TODO updated

TODO

 MAJOR:
 
-1. Support for the explicit subtype constraints:
-	Name ::= IA5String (FROM("A".."Z"))
-   Status: in progress.
+1. Support for PER encoding. Requires advanced subtype constraints support (#1)
 
 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.
+3. Support for XER encoding.