Merge branch 'release-0.1.5' into development
Add the Journal of Web Semantics bibliographic data to README.
Compression communicated through the HTTP Content-Encoding header.

This changes the previous protocol in which a Set-Compression command
was sent before starting to send events.
Set a Content-Type header in the responses.

Tornado was sending text/html by default.
Allow cross-origin requests from javascript.

See http://www.w3.org/TR/cors/ for more information.
Change the media type to application/ztreamy-stream instead of text/...
First prototype of json and json-ld serlization for long-polling.

Long-polling clients that send 'application/json' in the Accept header
receive the JSON-formatted data.
Small changes: fix imports and a function's comment.
Add a requirements.txt file and add rdflib-jsonld to them.
CRLF is now the end-of-line delimiter in event serialization.

The LF end-of-line delimiter is deprecated. It is transitionally
permitted for backwrads compatibility, but a warning is issued the
first time a deserializer receives one.
Update the user guide about the CRLF EOLs.
Move the python examples to a subdirectory.

The objective is making room for examples in other languages.
Flush stdout when writing events at the default client main code.

When the body did not end with an end of line, its last line was not shown.
Add an example of a publisher in Java.
Remove old code from the client module.
Improved media-type support.

Events are now represented as application/ztreamy-event.
Update version number and changelog.
Add a MANIFEST.in file for including the examples in the distribution.
Merge branch 'release-0.2'.