Merge branch 'test-protocols' into testsuite-work

Merge branch 'test-protocols' into testsuite-work

* test-protocols:
  testsuite: fix some redundant autotools calls in tests on TAP
  * THANKS (Daniel Richard G.): Update e-mail address.
  java: avoid compilation errors when CLASSPATH is empty
  parallel-tests: no more spurious successes for FreeBSD make
  tap: improve granularity for tests on problematic TAP messages
  tap: correctly handle string "0" in TAP messages
  tap: a minor simplification in the perl TAP driver
  parallel-tests: fix help screen for test driver scripts
  tap: add a dummy TAP driver script implemented in shell + awk
  testsuite: refactor tests on TAP support in view of future changes
  fix: regenerate tests/Makefile.in
  hacking: we now require autoconf 2.68