text_personality needs API option

[nbjornberg]

API keys are provided now from IBM instead of username:password.

[MasculineMallard]

Agree.

[petegordon]

Yep. We haven't had time to work on this; definitely open to pull requests--if you're able to give us a hand. Thanks.

[MasculineMallard]

My skillset is more statistics than programming, but if i can figure it out i will submit a pull request.