This reverts commit 79759fea, reversing
changes made to dc36f4df.

Which makes sure target that depend on both codegen and grpc build.

Clean up anything that failed

And reflects the C++ API in ServerBuilder.

- Changed the unsigned char * + size to NULL terminated strings which
  makes sense for the PEM format. I may change TSI later (but the impact
  will hopefully be much more limited).
- Added a way to pass multiple key/cert pairs to servers which is needed
  when hosting more than one domain.
- Removed the C++ SSL credentials tests as we are going to have an
  option to not specify the roots which will then be derived from the
  environment (well-known platform dependent locations and/or
  environment variable).
- Fixed the php build which is the only one added in the run_test.py.
  This change will certainly break node, python and ruby.

	Change on 2015/01/12 by nnoble <nnoble@google.com>
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=83810001