* Add try/catch around yarn.lock calls

* Improve test structure

* Update dependency babel-jest to version 20.0.1

* Update dependency babel-jest to version 20.0.3

Closes #218

* Update dependency prettier to version 1.3.1

* Run eslint-fix

Closes #205

* Update dependency prettier to version 1.3.0

* Run eslint-fix

* Update dependency handlebars to version 4.0.7

* Update dependency handlebars to version 4.0.8

* Update dependency np to version 2.14.0

* Update dependency np to version 2.14.1

Closes #196

Closes #190

Fixes #189 

* Add @types/helmet as npm fixture

* Add zero dot zero tests for tilde and caret

* Fix caret zero dot zero logic

Closes #188