Merge pull request iZettle#195 from iZettle/version_1.7.1

SDK Release [v1.7.1]

Merge pull request iZettle#190 from iZettle/issue-template

Add issue template

Merge pull request iZettle#164 from iZettle/version_1.6.1

SDK version 1.6.1

Merge pull request iZettle#162 from iZettle/version_1.6

Updated SDK to 1.6

Merge pull request iZettle#150 from iZettle/version_1.5

SDK version 1.5

Updated SDK to 1.4.2

Updated SDK to 1.4.1

Updated SDK to 1.4.0

Updated SDK to 1.3.1

Merge pull request iZettle#77 from iZettle/release-1.3.0

Fixes broken podspec