Change the expiration date and title of the -03 draft.

Create -03 version of the internet draft.

Remove the 'override' keyword from ~BrotliFileIn().

Apparently MSVS 2010 does not support this.

Remove quality parameter from bitstream writing functions.

Fix a few crashes related to some quality and param combinations.

Add a static hash table based dictionary lookup to fast brotli.

Encoder support for new empty meta-block format.

Changed the parallel implementation to sync meta-blocks
to byte boundary by emitting empty meta-blocks.

Fix entropy calculation.

Encoder implementation using input/output classes.

Add a BrotliCompress() method to the public encoder API
that uses the BrotliIn and BrotliOut classes and use
that in the 'bro' command-line tool.

Use the streaming api in BrotliCompressBuffer() and
BrotliCompressor::WriteMetaBlock().

Use the appropiate hashers for quality <= 9.

Add input and output classes for streaming compression.

Add params to disable static dictionary and context modeling.

Disable all slow features for quality <= 9 (literal cost modeling,
dictionary, context modeling, advanced block splitting).

Change vector<Command> arguments of internal functions
to Command* and size_t.

Makefile fixes and cleanups

[python] prepend build/lib folder to PYTHONPATH before running tests

Add partial output support to the decoder.

Implement some stricter format checks in the decoder. 

  - Reject brotli streams where the number of
    nibbles is too large for the size of the
    meta-block
  - Reject brotli streams where the padding
    bits after a meta-block are not all zero
  - Reject brotli streams where the symbol
    in the simple prefix code is not in
    the symbol alphabet

Decoder support for new empty meta-block format.

This change enforces the new 16MB limit on the
size of the meta-blocks and adds support for
empty meta-blocks with optional ignored metadata.

Support empty meta-blocks with optional ignored metadata.

This is a partially backward incompatible format change,
that makes previously valid brotli streams that contain
larger than 16MB meta-blocks invalid.

The impact of this should be minimal, since the 'bro'
command-line tool does not create larger than 2MB
meta-blocks, so the only streams this change could
break are those created by a custom brotli encoder.

This commit contains only the specification update,
implementation in the decoder and encoder will
follow in later commits.

Change the specification to be less strict in some cases.

In the following three cases we allow more choices
for the compressor, which can potentially lead to
less compressed bits.

  (1) Allow brotli streams where the block counts
      do not count down to exactly zero at the end
      of the meta-block. This makes it possible
      for compressors to sometimes choose a block
      count which can be represented with less bits
      than the exact block count.

  (2) Remove the restriction that prefix code
      descriptions with exactly one non-zero
      length symbol in the code length alphabet
      must have 1 bit depth. This is because
      bit depth 1 requires the most bits to encode.

  (3) Allow any copy length value in the last
      command where the copy part is ignored.
      This makes it possible for a compressor
      to choose a copy length which can be
      represented with the least amount of bits.

In addition to the changes above, this commit also
has a wording clarification in the overview section
where the use of the 'context ID' expression is
changed to be consistent with the rest of the
specification, i.e. that it is a function of the
last two literals or the copy length.

Use consistent sentence spacing in the specification.

All sentence spacing was changed to one space, except
in the boilerplate which must be preserved verbatim.