Keep the CONTRIBUTERS section in all modules

Pod::Weaver::Section::Contributers version 0.006 introduced a new option
(all_modules) and changed the default behaviour from weaving a section
into all modules vs. just the main module.  Explicitly keep the original
behaviour for us.
Add "JavaScript" to the spelling dictionary

Whatever wordlist I have installed is different from the one Dave used
when adding the spelling tests.