Fixd README date.

make_osx_package.sh: removed executable signing.

We just sign the pkg now.

For some reason we were getting "obsolete resource envelope"
in signing executables.  This seems to be documented here
http://stackoverflow.com/questions/25152451/are-mac-app-store-code-sign-resource-envelopes-always-version-1
and seems to be an El Capitan regression.  Until a solution
is found, we'll just sign the pkg.

Updated changelog.

Updated copyright dates to include 2016.

Updated man page.

Removed strip commands from make-windows-installer.bat.

Updated man page.

Regenerated man page.

deb/Makefile: Renamed COMMIT -> TREE

Fixed windows stack.yaml.