Add a \ in front of open-paren-in-column-0 in docstrings. Otherwise
indentation and font-lock get confused.
(idlwave-function-menu): Use defalias so the funs are called interactively.
Don't rely on knowledge about which Emacs provides imenu or func-menu.
(idlwave-calculate-cont-indent): Fix typo.
(idlwave-font-lock-keywords-*): Don't use setq on a defconst.
Remove unused variables.
(idlwave-rw-case, idlwave-elif, idlwave-case, idlwave-for,
idlwave-if, idlwave-procedure, idlwave-function, idlwave-repeat,
idlwave-while): respect `idlwave-reserved-word-upcase'.
(idlwave-rw-case): New function.
(idlwave-statement-match): Fixed problem with assignment regexp.
(idlwave-font-lock-keywords): Improved regexp for keyword
parameters.
(idlwave-surround): New argument LENGTH to support padding of
operators longer than 1 char.
