Hachoir core

Field.getFieldType() was created to describe a
field type and give some useful information. The
TimestampUnix64 field type was created.
GenericString now only guesses the character set
once. If the charset attribute if not set, a guess
is made when it's requested by the user.

parser.tags was renamed to parser.PARSER_TAGS for compatibility with hachoir-parser 1.0.

This release has a new type TimestampUUID60 (used in Windows GUID). The SeekableFieldSet class has been fixed. String value is always Unicode. A readBytes() method has been added to OutputStream. hachoir_core.profiler (profile method) and hachoir_core.timeout (call a function with a timeout) modules have been added.

A string value is now always Unicode, even on a
charset conversion error. Creation of field value,
display, and raw_display attributes is now fault
tolerant and uses the cache. The SeekableFieldSet
class is nearly complete and more robust.
GenericFieldSet uses a lock to avoid field
creation recursion. The limitedMemory() function
was added to call another function with a memory
limit. The Float80 type was added.

The HACHOIR_ERRORS constant was created, and is a
list of minor errors that can be ignored. setup.py
only uses setuptools when it's asked. The
"truncate" optional argument was added to
GenericString. The hexadecimal() text handler now
accepts fields of any size. GenericInteger now
raises an error when field size is bigger than 256
bits. humanDuration() was fixed for duration
bigger than one year.