Tools to generate coverage reports

Don't mix C and C++ libraries.

Now buildtests_c won't try to build C++ libraries.

Add generated files to .gitignore

Removing libevent from third_party, as it's no longer necessary.

Run clang-format against node.js sources

Node codebase

Added libdl include to make the PHP library compile

Grpc tools docker pregenerate ssh key

clang-format codebase

Fix and run C++ tests

This was failing to compile.

Fixes the shebang line

and also to turn the client into a server that can be controlled remotely (client part
not implemented yet)
	Change on 2015/01/13 by vpai <vpai@google.com>
-------------
Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=83863541

- adds _grpc_ensure_gcloud_ssh that creates the ~/.ssh/gcloud_compute_engine
  key file if it does not exist

- update all the grpc_** commands that use ssh to call this

- fixes the shebang line by moving it above the copyright notice in
  executables.

- also fixes the execution bit on all the binaries

Fix compile: check return value for error