Bump src/collector, src/etcd-metrics-server

Bump cloudfoundry/collector:
  Ted Young:
     Add ability to send metrics for etcd-diego ( Travis Success: https://travis-ci.org/cloudfoundry/collector/builds/23632260 )
Bump cloudfoundry-incubator/etcd-metrics-server:
  Ted Young:
     allow custom jobName to be set via commandline
     updated Godeps, log component URL since previous values are now private
  Onsi Fakhouri:
     Fix coveralls badge
     Remove obsolete logging
     cover your alls with more all-cover
  David Varvel:
     Cover all the alls
  Max Brunsfeld:
     add a dial timeout to etcd health check

[#69462832]

Signed-off-by: Chris Adams <cadams@pivotallabs.com>