Proto commits in bigcommerce/gruf

These 8 commits are when the Protocol Buffers files have changed:

Commit:1d73ad8
Author:Shaun McCormick
Committer:Shaun McCormick

Add rake task for demoing concurrent calls to server

The documentation is generated from this commit.

Commit:ca943da
Author:ydah
Committer:ydah

s/geting/getting/

Commit:29d5bb9
Author:Shaun McCormick
Committer:Shaun McCormick

Allow passing a specific list of services to run via the gruf binstub

Commit:31a95c9
Author:Shaun McCormick
Committer:Shaun

Add demo rake tasks for doing performance testing under high load

Commit:f35ef28
Author:Shaun McCormick
Committer:Shaun McCormick

Gruf 2.0

Commit:7e24011
Author:Shaun McCormick
Committer:Shaun McCormick

Fix issue with field errors being persisted between calls

Commit:77c41c7
Author:Shaun McCormick

Add comments

Commit:852bdec
Author:Shaun McCormick
Committer:Shaun McCormick

GRUF-18: Fix issues with bidirectional streaming