Prevent erroring for newer non-SemVer watchman versions

[gabrielcsapo]

fixes #12

[gabrielcsapo]

@rwjblue should we also deprecate the versions of node we support?

[nlfurniss]

@rwjblue should we also deprecate the versions of node we support?

Have to otherwise tests will fail ☹️ . And you're bumping the version anyway

[gabrielcsapo]

I updated the nodejs versions to use the supported versions. cc @rwjblue @nlfurniss

[asakusuma]

@gabrielcsapo can you explain the solution? It looks like this PR just removes the version check. Assuming that's correct, can you explain why it's now ok to not check the version?

[rwjblue]

Hmm, if we couple this with a major bump we'll not be able to get the fix out to folks using currently supported ember-cli versions.

@gabrielcsapo - What triggered the node engines change? Just basic cleanup stuff, or something specific?

[chriskrycho]

@nlfurniss noted above:

Have to otherwise tests will fail ☹️ . And you're bumping the version anyway

[scalvert]

@rwjblue I believe CI was failing due to an engine update in a downstream dependency.

[rwjblue]

I just rebased and updated this PR, it should not require a major bump.

[gabrielcsapo]

Thank you @rwjblue !