Proto commits in golang/groupcache

These 3 commits are when the Protocol Buffers files have changed:

Commit:4eab30f
Author:Brad Fitzpatrick

testpb: add syntax declaration to proto file Required for Google's internal build system.

The documentation is generated from this commit.

Commit:7e022f8
Author:Brad Fitzpatrick
Committer:Brad Fitzpatrick

groupcachepb: add syntax declaration to proto file Required for Google's internal build system. Change-Id: I7cc7b1ffab9f4405715eeb675df3bf3bea85f107

Commit:6dad98a
Author:Brad Fitzpatrick
Committer:Brad Fitzpatrick

initial commit.