Add Case Insensitivity to commands

[icco]

Part 1 of #84. Does not fix the case of dealing with non-ansi characters to ansi characters.

[icco]

Not sure how to deal with the circleci failure @fabioxgn. I assume that's a configuration issue?

[fabioxgn]

Not sure how to deal with the circleci failure @fabioxgn. I assume that's a configuration issue?

@icco yes, the coverrals command is broken when build forks, I'l try to fix it.

[coveralls]

Coverage remained the same at 97.826% when pulling b2e60b2 on icco:patch-1 into 0592640 on go-chat-bot:master.

[fabioxgn]

@icco build fixed, sorry for the trouble.