update to webpack alpha.9

[sokra]

No description provided.

[guybedford]

Thanks @sokra, I've pushed up a commit to update the unit tests, which should get this passing CI now with some luck.

[codecov-io]

Codecov Report

Merging #242 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #242   +/-   ##
=======================================
  Coverage   69.25%   69.25%           
=======================================
  Files          16       16           
  Lines         670      670           
=======================================
  Hits          464      464           
  Misses        206      206

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[sokra]