Updates to account for changes resulting from fixes to libcurses.

Update of tests to account for output changes associated with wide char
fixes. Also, default all tests to using UTF8 instead of doing a special
dance for the wide character tests and fix debug_test

Update of tests to account for output changes associated with wide char
fixes. Also, default all tests to using UTF8 instead of doing a special
dance for the wide character tests and fix debug_test to force set the
locale to UTF8 so tests under debug don't throw spurious mismatches
when a wide character test is run.

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Merge in code from Google Summer of Code project which dramatically
increases the number of tests performed.

Thanks to Naman Jain <jnaman806@gmail.com> for his excellent work on
this GSoC project.