Remove one more pipe.

Re fixes #976
TBR=@alxandr

Review URL: https://github.com/google/traceur-compiler/pull/981

Closes #981, closes #976.
0.0.35
0.0.36
0.0.37
gh-pages branch needs a build in case the trees.json changed
0.0.38
0.0.39
Update the NPM description

Fixes #968
Merge branch 'build-gh-pages-binaries' of git://github.com/johnjbarton/traceur-compiler into johnjbarton-build-gh-pages-binaries
Fixup package.json
0.0.40
HoistVariableTransformer should understand destructuring
Keep binding identifiers in assignment patterns
new System.register for circular deps
naming and comment corrections
include es6-module-loader tests