Fixes

[shal]

Add .gem to gitignore, badge for concourse CI and remove travis.
⚠️ We should make https://ci.helioscloud.com/teams/heliostech/pipelines/kite public to use badge

[calj]

so cool!

[codecov-io]

Codecov Report

Merging #81 into master will increase coverage by 18.51%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           master      #81       +/-   ##
===========================================
+ Coverage   19.17%   37.69%   +18.51%     
===========================================
  Files          17       17               
  Lines         459      459               
===========================================
+ Hits           88      173       +85     
+ Misses        371      286       -85

Impacted Files	Coverage Δ
lib/kite/core.rb	92.85% <0%> (+14.28%)	⬆️
lib/kite/base.rb	100% <0%> (+25%)	⬆️
lib/kite/cloud.rb	100% <0%> (+30.76%)	⬆️
lib/kite/generate.rb	74.54% <0%> (+36.36%)	⬆️
lib/kite/helpers.rb	94.59% <0%> (+43.24%)	⬆️
lib/kite/render.rb	88.52% <0%> (+68.85%)	⬆️

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