Update result classes with new naming standards outlined in issue [#76].
Remove unused file.
simple lc tests in schema sanity
fixup much of remaining CamelCase accessors in methods + fix tests
user_attributes.t now passes
Fix typo in has_many relationship that did not adhere to plural naming.
fixup Session Cart->carts
Merge pull request #81 from interchange/changes/relationship-naming

merge Changes/relationship naming fixes #76