Bump harmonize to 1.4.0

[bryannaegele]

Please bump harmonize to support running in node v0.12 and iojs. This request obviously does not attempt to address all issues to fully support node v0.12 or iojs, but does allow users to install and run jest-cli in those environments. Tested in node v0.10.36, node v0.12.0, and iojs v1.2.0.

Fixes /issues/235.
Part of the work required for /issues/243.

See dcodeIO/node-harmonize/issues/1.

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[DawidJanczak]

👍 This should be merged ASAP, without this the call to harmonize in jest on 0.12 causes a major memory leak (in addition to simply not working).

[jeffmo]

Just published 0.3.0 which includes this update. Thanks a ton for sending this over!

[donatasbacius]

Just an FYI - the version of harmonize included with jest@0.3.0 depends on is-iojs@1.0.0 which has a bug on Windows... (submitted a pull request). This bug prevents jest from running and renders it unusable.

[nmn]

I'm on v0.4.1 and Jest doesn't seem to work on anything more than node 0.10.x
I tried io.js 2.0.1 and that didn't work either. (I didn't try, io 1.x)

I didn't try to use the harmony flag anywhere.

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