Remove example warnings

Fix travis build fail

Merge pull request #35 from cruisediary/support-xcode10

Support Xcode 10

Bump version to 0.3.0

Bump version to 0.2.2

Merge pull request #5 from cruisediary/feature/support-carthage

Support Carthage

Merge pull request #3 from cruisediary/feature/support-direction

Support animation direction

Update Podspec

Update podspec