Drop ALPN support.

https://github.com/square/okhttp/issues/666
(cherry picked from commit 4c86085429edbeef0a383941936ee7b64cc3805e)
Track Connection ownership.

Connection ownership is somewhat racy: when an HttpURLConnection reads
the last byte of a connection, its ownership is released and given to
the connection pool.

(cherry picked from commit 6c57d76915a7e79cc8b8f743ccd8ecc35889ce7c)
New disconnect strategy.

Support asynchronous disconnects by breaking the socket only, which
should cause the thread using that socket to trigger clean-up.

(cherry picked from commit 9c302131491d05a4ca0209ef21770592c01f76fa)
1.5.4 changelog.
Make a flaky test less flaky.
[maven-release-plugin] prepare release parent-1.5.4
[maven-release-plugin] prepare for next development iteration
Update to HTTP/2 Draft 10 and HPACK Draft 6.

Conflicts:
	okhttp-tests/src/test/java/com/squareup/okhttp/internal/spdy/HpackDraft06Test.java
	okhttp-tests/src/test/java/com/squareup/okhttp/internal/spdy/Http20Draft09Test.java
	okhttp/src/main/java/com/squareup/okhttp/internal/spdy/Http20Draft10.java
build for Android in Eclipse