Merge pull request #1848 from fgnass/master

add picture element and related attributes
Merge pull request #2033 from pekim/master

Add support for <dialog> tag.
Bump esprima + jstransform versions

Conflicts:
	package.json
Update shrinkwrap
Update shrinkwrap again

Travis ran into some problems, hopefully this fixes it.
Add support for a --strip-types flag to bin/jsx

(cherry picked from commit 808730df59b8977f1b5e2b878fc44615a4fa9e56)

Conflicts:
	vendor/fbtransform/visitors.js
v0.11.2
merge with original 0.11.2
improved user input handling for ie6/ie7 specially for backspace and delete keys