Pyasn1

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- Hex/bin string initializer to OctetString object reworked
(in a backward-incompatible manner)
- Fixed float() infinity compatibility issue (affects 2.5 and earlier)
- Fixed a bug/typo at Boolean CER encoder.
- Major overhawl for Python 2.4 -- 3.2 compatibility:
+ get rid of old-style types
+ drop string module usage
+ switch to rich comparation
+ drop explicit long integer type use
+ map()/filter() replaced with list comprehension
+ apply() replaced with \*/\*\*args
+ switched to use 'key' sort() callback function
+ support both __nonzero__() and __bool__() methods
+ modified not to use py3k-incompatible exception syntax
+ getslice() operator fully replaced with getitem()
+ dictionary operations made 2K/3K compatible
+ base type for encoding substrate and OctetString-based types
is now 'bytes' when running py3k and 'str' otherwise
+ OctetString and derivatives now unicode compliant.
+ OctetString now supports two python-neutral getters: asOcts() & asInts()
+ print OctetString content in hex whenever it is not printable otherwise
+ in test suite, implicit relative import replaced with the absolute one
+ in test suite, string constants replaced with numerics

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- Fix to base10 normalization function that loops on univ.Real(0)

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- ASN.1 Real type is now supported properly.
- Objects of Constructed types now support __setitem__()
- Set/Sequence objects can now be addressed by their field names (string index)
and position (integer index).
- Typo fix to ber.SetDecoder code that prevented with schema decoding
operation.
- Fix to explicitly tagged items decoding support.
- Fix to OctetString.prettyPrint() to better handle non-printable content.
- Fix to repr() workings of Choice objects.

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- Major codec re-design.
- Documentation significantly improved.
- ASN.1 Any type is now supported.
- All example ASN.1 modules moved to separate pyasn1-modules package.
- Fix to initial sub-OID overflow condition detection an encoder.
- BitString initialization value verification improved.
- The Set/Sequence.getNameByPosition() method implemented.
- Fix to proper behaviour of PermittedAlphabetConstraint object.
- Fix to improper Boolean substrate handling at CER/DER decoders.
- Changes towards performance improvement:

+ all dict.has_key() & dict.get() invocations replaced with modern syntax
(this breaks compatibility with Python 2.1 and older).
+ tag and tagset caches introduced to decoder
+ decoder code improved to prevent unnecessary pyasn1 objects creation
+ allow disabling components verification when setting components to
structured types, this is used by decoder whilst running with schema
mode.
+ BER decoder for integer values now looks up a small set of pre-computed
substrate values to save on decoding.
+ a few pre-computed values configured to ObjectIdentifier BER encoder.
+ ChoiceDecoder split-off SequenceOf one to save on unnecessary checks.
+ replace slow hasattr()/getattr() calls with isinstance() introspection.
+ track the number of initialized components of Constructed types to save
on default/optional components initialization.
+ added a shortcut ObjectIdentifier.asTuple() to be used instead of
__getitem__() in hotspots.
+ use Tag.asTuple() and pure integers at tag encoder.
+ introduce and use in decoder the baseTagSet attribute of the built-in
ASN.1 types.

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- The individual tag/length/value processing methods of
encoder.AbstractItemEncoder renamed (leading underscore stripped)
to promote overloading in cases where partial substrate processing
is required.
- The ocsp.py, ldap.py example scripts added.
- Fix to univ.ObjectIdentifier input value handler to disallow negative
sub-IDs.

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- Decoder can now treat values of unknown types as opaque OctetString.
- Fix to Set/SetOf type decoder to handle uninitialized scalar SetOf
components correctly.