fix(@angular/cli): allow typescript 2.2.x

[scttcper]

closes #4980

const semver = require('semver')
// current
semver.satisfies('2.2.1', '>=2.0.0 <2.2.0')
false
// new
semver.satisfies('2.2.1', '>=2.0.0 <=2.2.x')
true

[filipesilva]

Closing, but please see #5586 (review) for reason.

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