Updates to download section

[Yaron Kashai <yaron@verisity.com>]

Dear all,

3 new chapters are now available on the download section at:
http://www.ieee1647.org/download_03.html

These are:
3. Data types
4. Structs
A. When and like inheritance (this is an informative clause which
   was removed from the Structs chapter).

Please start the review process for these documents, as we hope
this is the FINAL revision.

The posted chapters represent roughly 1/5th of the total document.
We urgently need the final technical inputs to maintain our
projected plan.

Best regards,
-- yaron