Remove obsolete VideoWidget docs
fixed an awful typo in the regexp

The regexp fails when backslashes are used in the search-regexp. The closing bracket was at the wrong position.
Extend the transclude widget to fallback to displaying it's child nodes if the target isn't defined
Merge pull request #407 from Skeeve/regexp_filter

fixed an awful typo in the regexp
Enhance links so that control/command clicking suppresses navigation

Control- or Command-clicking on a link will now open the target tiddler
but suppress navigating to it. Kind of like opening in a background tab.
Fix typos
Add config tiddler for host string
Fix default tab in the "more" sidebar tab
Add experimental support for building plugins in the browser

It’s a bit rough and ready, but works.
Credit for @Tikkoneus's grammar docs
Fix problem with the reveal widget not refreshing properly when used with text references

The check for changed tiddlers was failing because `this.stateTitle`
contains the entire text reference, not just the tiddler title.
Extend setTiddlerData() to set arbitrary fields
Extend the navigator widget to maintain the "current-tiddler" field on the history list
Darker text for the "close all" text on the "open" sidebar tab
Expand the logging mechanism to support alerts overlaid on the main screen

Now we get decent visual indication of sync errors, for instance. Still
work to do to coalesce alerts so that the screen doesn’t fill up with
them after an interval. And probably we should add a button to clear
all alerts.
Better not to use relative dates for alerts

Relative dates don’t autorefresh at the moment.
Enhance alerting to coalesce repeated alerts with the same text
Docs updates
Add hint for typing triple backticks on some keyboards
Fix problem with tiddlers of the type text/css

Fixes #395