WebAssembly ready for shipping on by default

[[)roi(]]

WebAssembly CG members representing four browsers, Chrome, Edge, Firefox,
and WebKit, have reached consensus that the design of the initial
WebAssembly API and binary format is complete to the extent that no further
design work is possible without implementation experience and significant
usage. This marks the end of the Browser Preview and signals that browsers
can begin shipping WebAssembly on-by-default. From this point forward,
future features will be designed to ensure backwards compatibility.

References:

• https://lists.w3.org/Archives/Public/public-webassembly/2017Feb/0002.html
• http://webassembly.org