beginner/camel-log example uses invalid timer value

While testing the quickstarts against the latest Mars-based Fuse Camel tooling, I discovered that the camel-log quickstart has a value of "timer:foo?period=5s" which is invalid according to the validation rules and the docs.

https://github.com/jboss-fuse/quickstarts/blob/master/beginner/camel-log/src/main/resources/OSGI-INF/blueprint/camel-log.xml#L47

According to the Camel documentation it appears the value should be "timer:foo?period=5000" for a 5 second wait. http://camel.apache.org/timer.html

When it is "5s" you see a validation error in the tooling now that says "The parameter period requires a numeric value."

This is a minor issue, but may trip up new users.