Use a module for the version number
Use module for versions
Forgot to add the version module doh
Change version to 0.2.1-alpha.1
Update version number in package and README
Use the version module for User-Agent
Use pair from registration
Method to check for reference in ActivityObject
Test to see that new information is included in activity objects
Make sure thisService is of type service
Merge remote-tracking branch 'origin/0.2.x'

Conflicts:
	README.md
	lib/version.js
	package.json
Slightly better object updates
expandProperty() uses getObject() instead of ensureObject()
Use getObject instead of ensureObject when possible
Don't timestamp activity unless it has no ID
Use get() rather than create() for updates first
Merge branch '0.2.x'
fewer requires in app-test
HEAD utility
Add a Server: header with our info