Release v1.2.0

[AlexMSmithCA]

• Expose history object in plugin API and token for overriding Router provider (#168)
• Update documentation - events and trackingId (#160)

[old-fusion-bot]

Triggered Fusion.js build verification: https://buildkite.com/uberopensource/fusion-release-verification/builds/726

[old-fusion-bot]

v1.1.2...AlexMSmithCA:auto-release-1.2.0-UFO3bDJlQW

[codecov]

Codecov Report

Merging #178 into master will decrease coverage by 0.54%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #178      +/-   ##
==========================================
- Coverage   79.12%   78.57%   -0.55%     
==========================================
  Files           7        7              
  Lines         182      182              
  Branches       41       41              
==========================================
- Hits          144      143       -1     
- Misses         25       26       +1     
  Partials       13       13

Impacted Files	Coverage Δ
src/modules/Route.js	72.22% <0%> (-5.56%)	⬇️

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