use a set in `resolve_dependencies` so we don't need two data structures
Create Sprockets::Template
Avoid tilt require
No one wanted to prepare anyway
Remove Tilt references from tests
Pass data to template for test
Remove String template
Mini tilt template subclass
Sprockets namespace
Drop tilt dep
Implement render instead of evaluate
Remove prepare
Remove template#file
Remove engine initialize as well
Process doesn't need to inherit from template
default_mime_type can just be a class method
Skip self arg
ditto
Merge pull request #516 from sstephenson/tiltless

Tiltless
Prepare for 3.0 release