Install module's repo not just NPM module

[bahmutov]

Via bahmutov/npm-utils#32

[bahmutov]

Also, instead of copying this module's files, remove the existing package in the dependent and then run npm install <this folder>

[amir-arad]

module's master branch may be broken at time of test. if possible, should install the release tag.

[bahmutov]

Good point @amir-arad - thanks for noticing!
In fact it probably should lookup the dependent module, see which version of current module it uses and then clone the repo at that particular tag.
Hmm, but I do want to check the latest master, because it is more likely to be upgraded to newer version of the dependency, rather than an old release. Hmm, seems there are different behaviors possible.