Added Installation notes (as simple as they are).
Removed line break from login_bar.htm's error message.

Otherwise the iframe would hide the error message.
Clean-up of the login bar script.

Actual language was moved into its own <span> and I reviewed the script a
little.
Improved document-wide text search behavior.

Now, for instance, /^117$/ matches the string and the number exactly. Also I
included field names in the search as well. We might end up with a bunch of
false positives such as _id, time.begin, etc.
Allowed lib/path to pretty-print path names.
Inserted line breaks into #tables field names.
Added a line break for nested XML column names.

LibreOffice Calc reads those and MS Excel at least degrades gracefully, as they
say. Neither of them stores the line breaks, but that's ok.