Adding support to override, via static_url, whether the generated URLs
should include the version signature or not.
Introduce StaticFileHandler.(get_content|set_headers) which reduces the
complexity of the HTTP GET handler of static resources.
Fixed syntax error in the altered StaticFileHandler.get() method
Move retrieval of absolute path to separate method which is also in
charge of validation.
Cache the computed absolute path to the requested resource in
StaticFileHandler. The cache is cleared on_finish of each request
in order to ensure recomputation on each request.
Make gen_test's timeout configurable
gen_test requires `timeout` passed as a keyword argument
Fix and simplify testing of gen_test
testing_test style cleanup
Configurable timeout for gen_test and AsyncTestCase.wait()
try close method to close FDs in IOLoop

If an object has a `close` method, use that first,
then fallback on `os.close`.

This is useful in subclasses that support polling things (zmq sockets, specifically)
that are not simple FDs (and Jython, I hear?).
use getattr to check for close method in IOLoop.close

instead of catching AttributeError directly
Merge pull request #723 from ajdavis/gen-test-timeout

Make gen_test's timeout configurable
Fix typo in README
Merge pull request #739 from eguven/master

Fix typo in README
Fix the same typo in docs/index.rst
Expand docs for @asynchronous decorator and other cleanups.

Closes #742.
support ip lists in X-Forwarded-For headers
Unnecessary MozWebSocket in the WebSocket demo

WebSocket is implemented in all modern web browsers.
Merge pull request #745 from davidwilemski/xheaders

support ip lists in X-Forwarded-For headers