loc.js regex was missing \r? before \n, so CRLF code fences were
never matched and the metric fell back to counting the whole response.
Also removed dead codeOf() from behavior.js (defined but never called).
Fixes#339
loc.js filtered comments line by line, so /* ... */ block comments whose
continuation lines are not *-aligned had their inner lines counted as code.
A plain indented block comment scored higher than the same code written
JSDoc-style. Strip /* ... */ before the line count so both are equal, and
add loc.test.js to lock the behavior.
Fixes#231
Aly Dhedhi