api to set modified C2SStreams
add key & cert option to c2s example
Fix travis ci link after fork
store reference to C2SStream in prototype

to spare some memory
Merge pull request #194 from dodo/feature/modifiedC2SStreams

modified C2SStreams API
Update changelog.md for next version
0.10.7
Grand refactoring stage #1
Use single module.exports for JID
Single Session exports
Single exports on client and component
Singe export on BOSHServer
Single exports on BOSHConnection
Fix examples, shift to 'index' entry point
Add index file
Use new mappings
Use modules
Use latest packages
Add test from pull #200
Revert JID test setup to show API hasn't changed