fix a deprecation and test on Julia 1.0

[rdeits]

(also cleans up the Travis configuration file a bit)

[codecov[bot]]

Codecov Report

Merging #3 into master will not change coverage. The diff coverage is n/a.

@@          Coverage Diff          @@
##           master     #3   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files           3      3           
  Lines          55     52    -3     
=====================================
- Hits           55     52    -3

Impacted Files	Coverage Δ
src/hausdorff.jl	100% <0%> (ø)	:arrow_up:

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[juliohm]

Thanks! Is the last line of .travis.yml redundant? Should we erase it as well? It seems like the previous line already calls Coverage.submit?

[juliohm]

I will merge, clean it up further, and tag a new release, thanks again for catching this.

[rdeits]

Ah, you're right. But actually it was the second-to-last line that should have been changed: I separated out the Codecov submission from the Coveralls submission into separate Travis commands in case one or the other fails, but I forgot to delete the extra Codecov submission.

[juliohm]

Got it, I will do the split and tag. I also removed the dependency on Statistics, by just rewriting sum(x) / length(x) instead of mean(x)