Remove the "mentioned here" bit, to make text more universal
* packages/js2-mode/js2-mode.el: Remove unused variables.  Use posix
character classes.  Do a bit of CSE simplification.
(js2-parse-highlight-member-expr-node): Flip test order to simplify code.
(js2-re-search-forward, js2-re-search-backward): Don't quote code.
(js2-echo-help): Defalias applies to symbol, not functions.