Traffic shaping does not match on service name

[magiconair]

The route weight command accepts a service name but does not use it when assigning weights to the targets. The current implementation matches on tags only.

The matching should happen as follows:

# assign weight w to src on service svc
route weight svc src weight w

# assign weight w to src on services with tags t1 and t2
route weight src weight w tags "t1,t2"

# assign weight w to src on service svc with tags t1 and t2
route weight svc src weight w tags "t1,t2"