linux-gcc-5        7981 ./super-test.sh tmpdir capnp-gcc-5 compiler g++-5
linux-gcc-6        7973 ./super-test.sh tmpdir capnp-gcc-6 compiler g++-6
linux-clang-3      8113 ./super-test.sh tmpdir capnp-clang-3 compiler clang++-3.8
linux-clang-5      8113 ./super-test.sh tmpdir capnp-clang-5 compiler clang++-5.0
exotic             4786 ./super-test.sh tmpdir capnp-exotic exotic

Add mega-test config for Kenton's work machine.
Add mega-test config for Kenton's work machine.

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