Adding a note about not trying to use Python 3.3.x to build docs -
requires Python 2.7. Python 3 support is possible, but sphinx-extensions
needs several changes.

Also adding excludes for a few backup files and such so they don't
get committed to the repo accidentally.
Merge pull request #64 from robertrolandorg/update_readme

Adding a note about not trying to use Python 3.3.x to build docs -
Link to tracing & binary-data docs.
Bump copyright.
add andreas and my secure networking paper
Merge pull request #65 from dylan-lang/add-secure-networking

add andreas and my secure networking paper
minor layout fix
Put external projects in alphabetical order.
Link to concurrency documentation.
fix links
Add getting started content and more links to installation notes.
Added a compatibility note.
Merge pull request #66 from BarAgent/dep-0007

Added a compatibility note.
Draft call-for-help post.
Add some links.
Point people to the wiki if the list here isn't interesting.
Missing (Oxford) comma.
Add more text.
Mention newer events as well.
Fix link.