Update mosh from 1.2.6 to 1.3.0 (thanks to Matthew Parsons for the nudge).

Changes since previous version:
	* New features:
		* Change website URLs from http://mosh.mit.edu to
		  https://mosh.org.  (Keith Winstein)
		* Add --no-ssh-pty option for Dropbear compatibility and
		  other issues.
		* Switch to semantic versioning, making this version 1.3.0
		  instead of 1.2.7.

	* Platform support:
		* Added nonce-incrementing test.  (Keith Winstein)
		* Add build-source-package.sh for Debian.  (Keith Winstein)
		* Fix CPPFLAGS handling possibly causing curses detection
		  failure.  (John Hood)
		* Add an Appveyor/Cygwin CI build.
		* Improve warning-flags detection for 'make distcheck'.  (John Hood)
		* Improve robustness of regression tests.  (John Hood)
		* Support OpenBSD pledge() sandboxing.  (John Hood)
		* Use backward-compatible name for AES in
		  AppleCommonCrypto, fixing builds with older OS X SDKs.  (John Hood)
		* Detect clock_gettime() and CLOCK_MONOTONIC carefully,
		  fixing OS X 10.12 + Xcode 7.3 builds.  (John Hood)
		* Support older versions of Perl, back to 5.10, fixing
		  RHEL 5 builds. (Anders Kaseorg)
		* Add a Travis OS X CI and release build.  (John Hood)
		* Add --help and --version, enabling Automake's
		 'std-options' checks.  (Anders Kaseorg)
		* Add a simple smoke test not requiring tmux, to help
		  validate builds on older platforms including RHEL 5. (Anders Kaseorg)
		* Check for presence of clock_gettime() for OS X, where
		  the symbol may not be resolved on older OS X versions.  (John
		  Hood)
		* Fix a memory alignment issue in OCB with ARM/Neon. (Carlos Cabanero)
		* Mosh now runs correctly on Bash for Windows with Windows 10
		  Insider builds 15002 and higher. (No change in Mosh)
		* Other minor platform compatibility fixes for Mosh
		  sources and tests.  (John Hood)

	* Bug fixes:
		* Work around a pty buffering issue causing failed
		  connections on FreeBSD 11, or with Dropbear.  (John Hood)
		* Restore '-p 0' option for OS-selected UDP port bindings.  (John Hood)
		* Shell hygiene fixes, including better quoting of
		  pathnames.  (Anders Kaseorg)
		* Fix typos in project docs.  (Jakub Wilk)
		* Fix excess newlines on mosh client startup/shutdown.  (John Hood)
		* Exit gracefully, closing session, on pty write or ioctl failure.  (John Hood)
		* Fix two bugs that caused mosh-server to consume
		  excessive CPU in certain circumstances.  (John Hood)
		* Fix bug that caused text copied from mosh-client to
		  paste as long lines joined by spaces.  (John Hood)
		* Documentation improvements. (chenxiaoqino, Ashish Gupta)
		* Use getuid(), not geteuid(), for correct getpw* lookups.  (John Hood)


(agc)