Use map-stream instead of event-stream / Fix .travis.yml

[shinnn]

• I replaced event-stream with map-stream. es.map() is just an alias for map-stream.
• I updated lodash, chai, mocha and gulp.
• I removed version 0.9 and 0.12 from .travis.yml. Travis CI doesn't support them.

[Saturate]

Seems good to merge! :)

[shinnn]

@lmtm What do you think?

I'd happily maintain this repo if you guys want to collab me.

[shinnn]

ping @Bowlazed @DavidBruant @Delapouite @jcbrebion @naholyr @t8g

[naholyr]

Very good job and sorry for the delay. Thanks for the ping ;)

[shinnn]

Thanks for merging.
What do you think about this?

I'd happily maintain this repo if you guys wants to collab me.

This repository doesn't seem to be maintained recently. If you add me to this repo as a collaborator, I'll take it on.

[naholyr]

It would be a pleasure, as we don't have much time for it and don't use it in current projects.

Done!

[shinnn]

Great! thanks 👍

And, Could you give me write access for npm package? (npm author add shinnn in the right directory should do the trick)

[naholyr]

Done, you'll tell me if anything went wrong when you'll need to publish, as I just published this PR's changes as 1.1.0.

[shinnn]

😄 Thanks, @naholyr.