This avoids some of the whitespace seen and reported, such as in issue

This addresses some of #370

Fixes #378.

However, this introduces many things into Annotator,
might break other stuff.

- The rearrangement introduced in bugfix 367 has broken the store.updateAnnotation function.
- Because of that the client does not get back to correct id.
- Added error handling for displayer page for invalid ids.

fixes #371

fixes #328

This reverts commit 2542a2d8501229d3b7c5585ed719946814996fa8.

Fixes #358

- Use the 'store' request property for getting annotations from the
  store without knowing exactly how. This will make it possible to
  run h but delegate to another store eventually.
- Use an AnnotationFactory and Annotation resource in the traversal
  tree to decouple the views and the model.
- Fix merge weirdnesses and divergences.

- using ng-model for the share-link
- Annotation deleted. is now being shown correclty

 - Corrected bug: Missing expand/collapse control
 - Nav bar changes:
   * Hypothes.is font size changed from 2em to 1.7em
   * Killed vertical lines
   * Hypothes.is is now left aligned
   * Killed "get extension"
   * Responsive to < 600 px