configure: add mips-float-abi (soft, hard) option
tls: fix setting NPN protocols

The NPN protocols was set on `require('tls')` or `global` object instead
of being a local property. This fact lead to strange persistence of NPN
protocols, and sometimes incorrect protocol selection (when no NPN
protocols were passed in client options).

fix #6168
doc: fix blog link in blog posts and README

Apparently Joyent decommissioned joyeur.com but at least they saved the
contents of the blog.  Update the links in the README and the nodejs.org
blog posts.

Hat tip to Eugen Pirogoff (@eugenpirogoff) for pointing it out.

Fixes #6224.
tls: don't push() incoming data when ondata is set

Otherwise the data ends up "on the wire" twice, and
switching between consuming the stream using `ondata`
vs. `read()` would yield duplicate data, which was bad.
doc: specify the format of the `ca` tls option
doc: fix typos in the tls `NPNProtocols` option
doc: document reserved status of SIGUSR1

Fixes #1212.
readline: handle input starting with control chars

Handle control characters only when there is a single byte in the
stream, otherwise fall through to the standard multibyte handling.
uv: Upgrade to v0.10.17
2013.09.24, Version 0.10.19 (Stable)

* uv: Upgrade to v0.10.17

* npm: upgrade to 1.3.11

* readline: handle input starting with control chars (Eric Schrock)

* configure: add mips-float-abi (soft, hard) option (Andrei Sedoi)

* stream: objectMode transforms allow falsey values (isaacs)

* tls: prevent duplicate values returned from read (Nathan Rajlich)

* tls: NPN protocols are now local to connections (Fedor Indutny)
Merge branch 'v0.10.19-release' into v0.10
Now working on 0.10.20
blog: Post for v0.10.19
blog: add missing shasums for v0.10.19 release
tls: fix sporadic hang and partial reads

Do not decrement size in read loop, its used later, when comparing to
`bytesRead`.

fix #6270

NOTE: Original patch contributed by @roadrunner2
src: turn uv_pipe_open() failures into exceptions

uv_pipe_open() is unlikely to fail but when it does, the failure should
not be quietly ignored.  Raise the error as an exception.

See joyent/libuv#941.
2013.09.30, Version 0.10.20 (Stable)

* tls: fix sporadic hang and partial reads (Fedor Indutny)
  - fixes "npm ERR! cb() never called!"
Merge branch 'v0.10.20-release' into v0.10
Now working on 0.10.21
blog: Post for v0.10.20