0.3.0: Wrinkly Rules

Lots of new rules in this one. Thanks to @S2dentik, @zippy1978, @Tableau-David-Potter for contributing to this release!

Breaking

• swiftlint rules now just prints a list of all available rules and their
  identifiers.

Enhancements

• Support for Swift 2.1.
  JP Simard
• Added StatementPositionRule to make sure that catch, else if and else
  statements are on the same line as closing brace preceding them and after one
  space.
  Alex Culeva
• Added Comma Rule to ensure there is a single space after a comma.
  Alex Culeva
• Add rule identifier to all linter reports.
  zippy1978
• Add OpeningBraceRule to make sure there is exactly a space before opening
  brace and it is on the same line as declaration.
  Alex Culeva
• Print to stderr for all informational logs. Only reporter outputs is logged to
  stdout.
  JP Simard
• JSON and CSV reporters now only print at the very end of the linting
  process.
  JP Simard
• Add support for guard statements to ControlStatementRule.
  David Potter
• Lint parameter variables.
  JP Simard

Bug Fixes

• Custom reporters are now supported even when not running with --use-stdin.
  JP Simard
  #151
• Deduplicate files in the current directory.
  JP Simard
  #154