Restore edit reply delete for search

When making a Highlight in HL mode, switch sidebar view to single mode.

Fixes #641.

... to single view, showing only the newly created highlight.

(First attempt to fix #461.)

After changing the search term from a quote to another, the quote highlights were not refreshed

It broke when the annotation.text field was empty

It tried to apply regexps even when they were not set.

The editor itself was shown, but the surrounding div tag was hidden.

By default it showed and edited the highlightText property of an annotation not the text. Besides that the only thing to do is to rebuild the highlighttext after the text has been edited.

Fixed some page search issues. (See #617 for details.)

Work around situations when two simultenous parameter change caused two subsequent reloads.

The two cases were:
 * When forcd login is triggered by enabling Highligting Mode without loggin in first
 * Then logging off from Highlighting Mode (which also switches off highlighting mode)

Fixes #626

Not it has the same behaviour as the Viewer in this fascion.

The quote search terms are now highlighted in the annotations quote.

Fixes #625

- Only searches for quote in the top-level annotations
- Also if another search term is given it will only match for top-level annotations
- Quote hits are displayed in detail mode

Earlier the notification system swallowed some notifications for private annotations.

* Style the cursor above the notification counter exactly as above tri (w-resize and rw-resize, depending on sidebar state)
* Make it react to clicks

- Slightly smaller to better fit everywhere.
- Slightly transparent in summary view, so as not to draw to much
  attention.
- Kill the border radius.
- Improve the vertical alignemnt of the input box.

Closes #599 by squashing.

Feature cocktail for current Demo

Notification throws out not relevant annotations when the social view mode is set to 'single-player'

- Added font family
- Bottombar has it's height decreased
- Centering the changes for the center of the speech bubble icon

- Flashes for new notifications.
- Notification number is counted in the bubble.

- Graphical design is missing
- Fix for refreshing synonims is missing

Now the Hypothes.is class has a field called 'socialView',
which specifies the social view filters that should be used.

This is considered when loading annotations on init, and also on
later re-loads, because of login/logout.

When the filter is changed, annotations are automatically reloaded.

(And there were also some cosmetic fixes.)