Working on Central

Updated dependencies

Merge branch 'indications'

Fixed `GATTCentral`

Address type is needed for creating an new connection

Fixed Xcode missing file reference

Updated unit tests

Merge pull request PureSwift#16 from PureSwift/bugFix/scanResponse

Fixed LE Scan Response

Updated `AdvertisementDataProtocol`

Updated dependencies

Fixed Swift 3 compilation error