Refactor to build starting point for Cascades.
Scalariform
Dummy implementation for Cascade.
Format: comments
Cascades implementation with a test case.
Code cleanup
Add cascade support to cli and webapp.
Fixup
Use ~! when backtracking is unnecessary.
Tweak build.
fixup: efficiency
Compile to 2.10.3.
Fix examples.
Types only propagate a single level.
Add cascade example.
Merge pull request #8 from allenai/cascade

Add cascade support