browser-asmjs: Bump emscripten to 1.34.3.
browser-asmjs: Bump emscripten to 1.34.3.

dockcross/dockcross,dockcross/dockcross,dockcross/dockcross,thewtex/cross-compilers,thewtex/cross-compilers,thewtex/cross-compilers,dockcross/dockcross,thewtex/cross-compilers