Add a 'new journal here' button

The journal tiddler will be tagged with the name of the current
tiddler. This is similar to how the new here button works.

(Would have liked to reuse the journalButton code which is almost
identical between new-journal-here and new-journal, but I'm not
sure how to do it.)
pushTop should return resulting array
Improve new tiddler behaviour with existing tiddlers

Now repeatedly clicking “new journal” will reuse the existing journal
if one exists
Merge pull request #959 from simonbaird/new-journal-here

Add a 'new journal here' button
Add new-journal-here button to viewtoolbar ordering
Fixed truncation of tiddler info panel

Caused by the fix to #282
Fix for previous fix

Fix for problem introduced in 25f4ce93ac377400f3ee530fbc998b76f00cc899
Move new journal here button to the correct directory
Add link to Iannis Zannos hints site
Fix for titles including double quotes
Add new filter example
Add chinese translations of new journal here button
Merge pull request #960 from BramChen/master

Update chinese translations
Correct return value for makeDraftTiddler
Fix behaviour of new tiddler message

Resolves some inconsistencies over the behaviour of the new tiddler
message under various circumstances.

“new journal here” when a journal for today already exists now brings
up the existing journal for editing, and adds the required tag.

I’d be very grateful for any testing of the behaviour here: try using
new tiddler, clone tiddler, new here, new journal here, and new journal
in various combinations (eg with the draft not existing, already
existing, open or closed etc), and let me know of any peculiarities.
Move date-related translateable strings into their own file
Missed from last commit
Fix problem with new tiddler button
Fixed typo in language files
Update release notes