Added unused RuleSet and applied some of the wisdom gained while writing it to other places.
Fixes for 1.9.
Used rule sets for English rules.
Extracted rule semantics into a class.
Encapsulated bahaviour of SSP in base syllable rules.
Explained rule DSL in readme.
Merge pull request #7 from gwagener/syllable_rule_dsl

Finished syllable rule DSL