Put system configuration parameters into KVS at runtime

[vsreekanti]

There a bunch of system parameters that are configured in conf files and initialized as runtime variables, like the number of threads on a particular node type and the default replication factor. If we eventually want to make our policy engine pluggable and have privileged functions with access to system parameters, it would be nice if these were retrievable and modifiable from within the system.

[jhellerstein]

Although some params may be static in a deployment, others will be dynamic. This issue would allow us to support dynamic config params.