* Media Manager: add help button and remove '...'
Issue #9042
* Edit/Preferences: add Help button
Issue #9042
* Style Editor, Document Styles dialog: add help buttons
Issue #9042
* Fix Select Person dialog Help button URL
Issue #9042
* Fix Select Repository dialog Help button URL
Issue #9042
* Relationship Calculator: Add help button
Issue #9042
* Reorder Relationships dialog; add Help button
Issue #9042
* Generate Book Dialog; Fix Help URL
Issue #9042
* Manage Book dialog; add help button
Issue #9042
* Fix Detached Gramplets Help button URL when 'help_url' not in .gpr
Issue #9042
* Fix help URLs when they contain illegal characters and to match wiki
section targetID algorithm
Issue #9042
* Translation revisions and fixes
* Generate zh_TW.po and new zh_HK.po from zh_CN.po
with the help of https://github.com/BYVoid/OpenCC
and a small sed script (see f.r. 7573 for the script)