adjusting styles for pattern view for easier reading
added models for pattern generator and hats
new module for utility method conversions
helper modules for pattern generation (constants, initializers for non-persistent classes, and views)
initialize non-persistent model in patterns#show
patterns show works OMG OMG VICTORY
Merge pull request #13 from feministy/show-pattern

patterns#show works; added non-persistent classes for generator models, helpers for math/initializing