wsgi: Add "100 Continue" response documentation

Signed-off-by: Tushar Gohad <tushar.gohad@intel.com>
PEP-8 fixes
greenio: When we mark a socket as closed we still need to be able to close it

https://github.com/eventlet/eventlet/issues/122

After a long running job that highlighted a previous known issue with
Second Simultaneous Read issue I used http://mg.pov.lt/objgraph/ to print
out all the types and counts still referenced by the GC.

Before this patch I was seeing GreenSocket and _socketobject types been
referenced. Depending on how long I ran the test job for I saw more references
to these objects. After this patch I see no reference no matter how long I
run my test for.
wsgi: pep8 fixes

Signed-off-by: Tushar Gohad <tushar.gohad@intel.com>
greenio: manual memory leak test

https://github.com/eventlet/eventlet/pull/125
v0.15.2 release
NEWS: forgot to mention 100-continue headers
Bump version to 0.16.0.dev
green.socket: create_connection: UnboundLocalError on Python3

Fixes https://github.com/eventlet/eventlet/issues/123
Adding changelog to the website
doc: gitignore; ./build-website.bash --no-commit
Tune documentation
Remove most of the deprecated code

Closes GH #144
Add Python 3.4 build options
Python 3 compat: Improve various bits

This includes changes to WSGI, websocket, bytes/str/unicode handling,
SSL, backdoor, greenio and tests.

Some comments and conditionals (PY2/PY3) were added for clarity

GH issues:

Closes #106
Closes #111
Closes #118
Closes #141

Incidentally should also close #135 (reopen if didn't)

cc #6
Fix SSL socket wrapping and Python 2.7.9 compatibility

This is connected to GH #135 and BitBucket #165
Reformat with autopep8
Python 3 compat: Fix precedence bug
Python 3 compat: Improve SSL and WSGI compat
Clean up