added docs on Source UUID and Plan Params
added docs on Source UUID and Plan Params

steveyen/cbft,couchbaselabs/cbgt,couchbaselabs/cbft,nimishzynga/cbgt,nimishzynga/cbgt,steveyen/cbft,steveyen/cbft,steveyen/cbft,couchbaselabs/cbft,couchbaselabs/cbft,couchbaselabs/cbgt,nimishzynga/cbgt,couchbaselabs/cbft,couchbaselabs/cbgt,steveyen/cbft,couchbaselabs/cbgt,nimishzynga/cbgt