Half working memory store replaced by redis

[davidwrpayne]

Accidental pr. Feel free to ignore

[CLAassistant]

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[codecov-io]

Codecov Report

Merging #65 into master will decrease coverage by 0.56%. The diff coverage is 7.01%.

@@            Coverage Diff             @@
##           master      #65      +/-   ##
==========================================
- Coverage   35.04%   34.47%   -0.57%     
==========================================
  Files          29       30       +1     
  Lines         799      815      +16     
  Branches       34       36       +2     
==========================================
+ Hits          280      281       +1     
- Misses        519      534      +15

Impacted Files	Coverage Δ
src/main/scala/com/twitter/diffy/Main.scala	100% <ø> (ø)	:arrow_up:
...om/twitter/diffy/proxy/ThriftDifferenceProxy.scala	0% <ø> (ø)	:arrow_up:
.../com/twitter/diffy/proxy/HttpDifferenceProxy.scala	50% <0%> (ø)	:arrow_up:
...om/twitter/diffy/analysis/DifferenceAnalyzer.scala	0% <0%> (ø)
...m/twitter/diffy/analysis/DifferenceCollector.scala	1.85% <1.85%> (+1.85%)	:arrow_up:
...ain/scala/com/twitter/diffy/util/EmailSender.scala	94.44% <100%> (ø)	:arrow_up:
...n/scala/com/twitter/diffy/DiffyServiceModule.scala	100% <100%> (ø)	:arrow_up:
...in/scala/com/twitter/diffy/lifter/HttpLifter.scala	100% <100%> (ø)	:arrow_up:
...diffy/analysis/RedisStoreDifferenceCollector.scala	21.42% <21.42%> (ø)
...cala/com/twitter/diffy/proxy/DifferenceProxy.scala	25.92% <50%> (ø)	:arrow_up:
... and 2 more

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