- Add sanity tests of line_mark_string
- Update TestHelpers::_parseq() to handle HTML section headers as
well as query.py section headers
- Add tests of web.py
- Note: don't look for 200 since web.py doesn't send an HTTP Status-Line.
- In web.py, update the shebang to use env(1). The hard-coded path
caused test failures on Travis, which runs Python in a virtualenv.
