Add new interchange module
feat(interchange): fix bugs
feat(interchange): add unit tests
feat(interchange): rollback useless change for the branch
feat(interchange): fix bugs #21
feat(interchange): fix bugs #21 (2nd update)
feat(interchange): Add interchange with background
feat(interchange): Insert better comments and ngdocs syntax
Merge pull request #32 from circlingthesun/topbar

feat(topbar): New topbar component.
feat(interchange): Update interchange documentation
feat(interchange): Fix test dependency
feat(interchange): Update demo layout
feat(interchange): Add a test about removing listeners
Merge pull request #21 from maxwellito/interchange

Interchange feature
Remove Interchange data prefix requirement
Add Interchange to list of supported components
Some edits to the Interchange demo
Update contribution guidelines
Rename release task to something more appropriate
chore(release): v0.3.0