Add missing dependency on transformers
Add -e to echo commands
Suppress warning

Stop hiding `catch` from Prelude, as warned by GHC 7.6. Question: does
this stop <7.6 from building?
Switch to IPv6 localhost in tests
Fix test

Request had hardcoded "localhost" only instead of test server's
locahost:port combination, started failing on a new system with no
Apache install at 80.
Use /bin/echo in Makefile
No need to build test suite with profiling

Complicates running tests on server systems that don't have the
profiling stack installed.
Fix hostname problem in test suite, again

Solve the IPv4 vs IPv6 socket problem by binding to "localhost"
instead of "127.0.0.1", which should work regardless of what is in
/etc/hosts and what network stack is in play.