Run tests for several compiler versions

Remove default value from two stackView fields

Test: deactivate xml error line checking on linux.

Merge pull request IBDecodable#75 from IBDecodable/feat/verify-ambiguity

Add support for verifyAmbiguity

Merge pull request IBDecodable#74 from r-plus/feature/support_UIColle…

…ctionReusableView

feat: Add support UICollectionReusableView

Update README.md