Changes

** Make Help a component in install builds - no bug quite yet, will be filed/taken by Jeff Walden (not at all difficult, waiting until viewer works correctly)

** Fix other miscellaneous things necessary to make Help a proper part of toolkit - [https://bugzilla.mozilla.org/buglist.cgi?query_format=advanced&short_desc_type=allwordssubstr&short_desc=&long_desc_type=substring&long_desc=&bug_file_loc_type=allwordssubstr&bug_file_loc=&status_whiteboard_type=allwordssubstr&status_whiteboard=&keywords_type=allwords&keywords=&emailtype1=exact&email1=&emailassigned_to2=1&emailreporter2=1&emailqa_contact2=1&emailtype2=exact&email2=&bugidtype=include&bug_id=268776%2C260058%2C260874&votes=&chfieldfrom=&chfieldto=Now&chfieldvalue=&cmdtype=doit&order=Reuse+same+sort+as+last+time&field0-0-0=noop&type0-0-0=noop&value0-0-0= buglist] - Jeff Walden

** [[Thunderbird:Help Documentation:Base|Thunderbird Help content]]

* Write Help documentation - anyone who wants to help, as we complete the topic outline