Disable gmp and re2 when running smoke test.
Use fifo for smoke test to speed it up even more.
Revert "Use fifo for smoke test to speed it up even more."

This reverts commit 5a2e2c5353349f7aaedec0bd26a1eead1b756cd0.
Merge pull request #434 from thomasvandoren/speed-up-travis

Disable gmp and re2 when running smoke test.