Rationalises rule tests back into Grammar; abstracts RHS next-symbol test away from requiring a predefined nextSymbol
Added RuleGenerators, which allow more general (but less efficient) pattern-specification of grammar rules
Updated build version to v0.5; added crossScalaVersions; updated README to contain DCG and RuleGenerator documentation
Removed crossScalaVersions
Merge pull request #1 from junglebarry/generalised-rules

Generalised rules
Merge remote-tracking branch 'origin/master' into master-2.10.4