Release version 0.2

[kittinunf]

What's in this PR?

• Release version 0.2.
• Update to Kotlin 1.1.4-3, thanks @babedev.
• Minor syntax changes.

[codecov]

Codecov Report

Merging #6 into master will not change coverage.
The diff coverage is n/a.

@@         Coverage Diff          @@
##           master    #6   +/-   ##
====================================
  Coverage       0%    0%           
====================================
  Files          11    11           
  Lines         188   188           
  Branches       28    28           
====================================
  Misses        188   188

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[kittinunf]

Merging this as 0.2 is uploaded.