Alpha Release 0.0.11

What's Changed

• Add atomic valuetypes and constraints to the language by @felix-oq in #206
• Add concrete constraints and validation by @felix-oq in #207
• RFC-0006 GTFS-RT-support: Refinements after Feedback from @rhazn by @schlingling in #201
• Allow trailing commas in collections by @felix-oq in #220
• Fix CSV interpretation bug by @felix-oq in #222
• Fix docs of CellRangeSelector by @felix-oq in #224
• Add ability to specify enclosing and escaping characters by @felix-oq in #225
• Add atomic valuetypes and constraints to the interpreter by @felix-oq in #208
• Unit test to ensure constraint executors are registered by @felix-oq in #226

Full Changelog: v0.0.10-alpha...v0.0.11-alpha