Added support for 'YY form in alphabetic date matchers
Added support for '1st of Feb.' form in english alphabetic date matchers
Preparing v0.3.0
Added atomic grouping / possessive quantifiers emulation in JavaScriptFlavor
Refactored Flavors into abstract class and objects
Refactored Cleaners from vals to objects
Refactored PossessiveToAtomic and AtomicToLookAhead as traits
Added TODO for Java 7 group syntax
Reformat REL.scala for better readability
Refactored Falvors: DRY, group naming strategies
Split REL.scala: REL.scala + package.scala ; +documentation
Rename REL.scala -> RE.scala ; fix README.md to reflect flavors refactoring
Renamed CamelCaseSplitter to CamelCaseSplitFilter
Minor doc fixes
Added support for local mode modifiers (aka NCG flags)
LineTerminator fixes and its \R shorthand for PCRE flavor
Group naming across flavors: checking methods + simplifier class
Minor fixes in doc, spacing and require messages.
Fix missing recursion in EmbedGroupNames validation & GroupNameSimplifier translation
Added 'traverse' method to produce a Traversable