Merge branch 'hotfix/0.1.11'
Merge branch 'release/0.1.12'
Merge branch 'release/0.1.13'
Merge branch 'release/0.2.0'
Merge branch 'release/0.3.0'
Add accessors for DecayValue's value
Remove valueNow, move epsilon to arguments, and formatting
Move valueAsOf into monoid
make decayed value monoid a separate class
Merge pull request #223 from tsdeng/separate_decayed_value_monoid

Separate decayed value monoid
SketchMap#create improvements
Merge pull request #227 from andrewnguyen/andrewnguyen/algebird225

SketchMap#create improvements
stash
OptionGroup
improve readability
Upgrade sbt, specs, add a build.properties, and bump travis's target
Merge pull request #231 from twitter/feature/upgrade_specs_to_specs2

Upgrade sbt, specs, add a build.properties, and bump travis's target
Adds sbt runner
Merge pull request #232 from twitter/feature/add_sbt_runner

updates sbt runner
Merge pull request #230 from mikegagnon/option_group

Option group