Release 2.6.3 with exposed raw value for PulleyPosition

This release adds a public initializer and makes the drawer position raw value pubically assessable.

Release 2.6.2 with adjusting shadow offsets

Similar to allowing an adjusting radius and opacity, this update allows adjusting the offset.

Release 2.6.1 with safe area insets

Fixes issues with iOS 10 drawer placement using safe area insets.

Update for Swift 4.2

2.6.0

Updating .swift_version for 4.2 release

Support for drawer masks and showing the panel in different corners.

2.5.0

Update readme, fix merge issue, bump pod version for 2.5.0 release.

Fix for drawer distance from bottom being reported incorrectly on initial load

2.4.5

Bump podspec

Updating release to latest tag

Misc. fixes, improvements, and API changes.

Fix dynamic shadowOpacity and shadowRadius #188

2.3.2

Fix for Dynamic shadowOpacity and shadowRadius #188, pod version bump.

Support for Swift Version CocoaPods setting in CocoaPods 1.4.0

2.3.1

2.3.1, with support for Cocoapods Swift Version setting.

Allow slight over scroll

Allow a slight overscroll above maximum drawer height to better emula…

…te Apple Maps behavior. (Note: Not exact due to backwards compat concerns). #180