Merge branch 'release/0.1.2'
Merge pull request #16 from paypal/release/0.1.2

releasing 0.1.2
Merge pull request #19 from paypal/release/0.1.4

releasing 0.1.4
Merge pull request #46 from paypal/release/0.1.5

Release/0.1.5
Merge branch 'master' into develop
update version
Merge pull request #49 from paypal/release/0.1.6

Release/0.1.6
Merge branch 'master' into develop
Setting version to 0.1.6
Changelog updated for 0.1.6
README.md updated to 0.1.6
Setting version to 0.1.7-SNAPSHOT
make the sendError methods work without messages so upstream receives don't intercept them
Make the some method null-safe for Options.
Avoid using sideEffectNone since it'll be removed.
bump sbt to 0.13.7, fix readme template, and add pomIncludeRepository
Merge pull request #54 from paypal/feature/sbt-0.13.7

Bump sbt to 0.13.7 and some extras
Better code style and error message.
Remove poorly named methods which nobody uses.
Remove tests for removed methods.