Merge branch 'master' into develop
Updated .gitignore to ignore pod installs for example and unit test projects
Updated querying methods to return RACTuples instead of NSDictionaries
Removed errors class

I no longer want to create a custom error if the a HealthKit data point returns nil. I want to keep HK's regular behavior and leave it to the user to check if there is a result or not.
Remove dlog stuff from test project's .pch
remove erroneous pod link into example app
bump podspec to 0.2.0
Merge branch 'develop'