add churn dependencies
copy churn sources and build targets
rename turn module turnFrontend and net module turnBackend
rename pipe to churn-pipe
mock providePromises for churn test
add notes on churn modules
update minor version for new churn modules
remove dependency on uproxy-churn
have the copypaste chat samples send strings rather than objects
Merge branch 'dev' into trevj-churn

Conflicts:
	package.json
add TODO to use end-to-end sha1
rename transformers to simple-transformers
add diagram for turn-frontend and turn-backend
descriptions in turn-xxxend typescript definitions
fix simple-transformers path in churn-pipe freedom manifest
fix path for jasmine simple-transformers
Merge pull request #136 from uProxy/trevj-churn

move churn modules into this repository
Merge branch 'dev' into trevj-session-lifecycle