C TAP Harness 2.1

I probably should have updated more of my other packages before kicking out the 2.0 release, but I wanted to get something out last night.

The change to try to find test executables without any extension as well as with the -t or .t extensions broke backward compatibility. In some of my test suites, I use a helper program with no extension that's run by the actual test program with a -t extension. If the helper program is compiled and hence in the build directory, and the actual test is a shell script and hence in the source directory, then the new runtests would find and try to run the wrong program.

Fix this problem by instead searching all possible locations for the test program with a particular suffix before moving on to try the next suffix on the list. This should provide the same functionality while being backward-compatible.

You can get the latest release from the C TAP Harness distribution page.