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
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