Replace optimist

[wzrdtales]

Replace optimist with a better component. As it's no longer support by the developer and doesn't met the requirements anymore.

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[wzrdtales]

Was moved to v0.11.0, actually we leave it in place for v0.10.x as we're going to take a look at several solutions and make decision afterwards.

[listepo]

https://github.com/tj/commander.js

[wzrdtales]

When replacing optimist, also rework the way db-migrate initialize. Currently db-mgrate needs ~0.22s for pure init before anything gets printed to the console.

Just by moving the command line parser to be the first item after instance identification will enable us a initialization time of ~0.07s instead.

[wzrdtales]

We had an increase from ~0.09s from version 0.9.x to 0.10.x, the reason for this is tunnel-ssh.

One level deeper it shows that actually ssh2 seems to be the slow one.

[wzrdtales]

Opened item #387 to immediately fix the issue with tunnel-ssh.

[ebaynaud]

This becomes important because of a vulnerability found in the version of minimist that optimist depends on. (In addition, mkdirp should be upgraded as well)