v0.3.0

Major features include:

• In the Kotlin target, snake_case used in type domain definitions is converted to PascalCase or camelCase as appropriate to the context, providing an API for the generated code that is far more idiomatic.
• The Kotlin target now includes 3 different types of visitors:
  • A standard visitor, suitable for simple semantic checks and validation.
  • A folding visitor, suitable for extracting data from trees.
  • A transforming visitor, suitable for simple transformations.
• Improvements to the public API for generating code--errors in the type domain throw an exception instead of calling exitProcess(-1).

Includes the following PRs:

• Add Travis CI status badge
• Update README.md
• Add .travis.yml
• Bump version to 0.2.0 and remove -SNAPSHOT
• Add Travis CI status badge
• Add note to main README about PIG's API status
• Named product properties in generated code
• Convert snake case to camel or pascal case for all identifiers in Kotlin target
• Revise product element naming syntax.
• Add visitors to generated Kotlin code
• Folding visitor
• Add transforming visitors to generated code
• Increments bugfix revision and adds -SNAPSHOT
• Fix publishing to maven local
• Enhance public API for generating code (#5)
• Add underscore to field transform function name to improve readability
• Add copy method to LongPrimitive and SymbolPrimitive and add tests
• Fix capitalization of generated Builder objects
• Use AnyElement instead of IonElement in generated code.
• Add basic kdoc to builder functions which explains presence of _ suffix
• Removed unsed property
• Removed unsed property
• Change return type of sum variant transform methods.
• Version bump in preparation for release