Squashed '_vendor/src/github.com/matttproud/golang_protobuf_extensions/' content from commit 1f8dae6

git-subtree-dir: _vendor/src/github.com/matttproud/golang_protobuf_extensions
git-subtree-split: 1f8dae66040bad36c04c59370a4e2ba2110a3726
Merge commit '66fe512ede157fcfbb51e8719c9443c1d6217838' as '_vendor/src/github.com/matttproud/golang_protobuf_extensions'
Squashed '_vendor/src/github.com/prometheus/client_model/' content from commit 775af94

git-subtree-dir: _vendor/src/github.com/prometheus/client_model
git-subtree-split: 775af9440e07a658e13f699448c745367bc12115
Merge commit '9b4a234aecca95d9476c4f6f556213cee8400a1a' as '_vendor/src/github.com/prometheus/client_model'
Merge pull request #27 from nickstenning/add-transitive-deps

Vendor missing transitive dependencies