Use a method called getComponentPort()
Rename 'conf' to 'configuration'
Remove example configuration that is optional
Remove unused configuration
Move xmpp.host to its own (defaulted) method
Add details about configuration that will be added in #213
Fix typo
Merge branch 'issues/218' of https://github.com/surevine/buddycloud-server-java into surevine-issues/218

Conflicts:
	src/main/java/org/buddycloud/channelserver/Configuration.java
Merge branch 'surevine-issues/218'