Add span wrapper around button caption text

Reasons:
- can show or hide the button text with CSS (assuming
  tv-config-toolbar-text is yes).
- can have different looking buttons in the page controls versus the
  view toolbar, etc
- more flexibility styling the button appearance, for example you
  can change the text size compared to the icon size
- button appearance is more themeable
Journal- and NewTiddler- related fr-FR strings
Typo in fr-FR Dates
Docs tweaks
Revert NewJournal fr-FR pattern to be the same as en-GB
Fix bad links
german video links for saving with chrome, firefox, ie
dates and misc same as en-GB now
Docs update
remove duplicated elements
Docs tweaks
revert leading 0 for timeline, but use it with Journal
Docs tweak
fix video protocol
Fix typo

Thanks @TheDiveO
Exclude search string tiddler from search results
Remove references to `$TW5_BUILD_OUTPUT`
Remove backslashes from example commands
Fix caption field of NowMacro doc tiddler
Enhance "includeWikis" to merge build targets

Build targets found in included wikis are merged behind any found in
the wiki itself