Fix statement count assertions
Take .ruby-version out of version control

Seems more like a personal thing
`where` can now be used to scope primary keys
Magic finders for primary keys
Merge SecondaryIndexes functionality into Finders
Pessimistic versioning for all dependencies

Also got rid of travis gems since they're not really dependencies
Merge pull request #91 from outoftime/finders

Add find_by_{primary_key_name} like in ActiveRecord
Update Appraisal gemfiles
Merge pull request #94 from outoftime/dependencies

No open-ended dependencies
Bump version