Lizard-map

----------------

- Graph and collage popups now use the "regular" jquerytools popup instead of
the OpenLayers in-the-map popup. Visually cleaner, clearer and prettier.
And easier to maintain and to get right.

- Various visual fixes.

- Deleting a workspace item also deletes the corresponding snippets.

- Added color pulldown for collage view settings (instead of requiring you to
know the internal matplotlib color code names :-) )

----------------

- Animation slider and name-hover are now also working in the default
workspace view.

- Name hover is now placed just to the lower right of the cursor. This way
you can still click on the item you hovered above instead of your click
being blocked sometimes by the hovering name.

- Added slightly more whitespace to the right of legend-less graphs: this
prevents (most) labels from being cut off.

----------------

- Added tooltips with name when hovering over clickable map items.

- Layout improvements for popups and tables.

- Added dateperiods: calculate periods for use in graphs.

- Added styling for popups.

----------------

- WorkspaceCollageSnippetGroup's name was a TextField (=multiline) instead of
a simple CharField. Oracle stores a TextField as a "NCLOB" and has some
restrictions on them (no index, no .distinct()). Anyway, this blew up on
an oracle-using installation. Fixed now.

- Removed double value_aggregate() method from base adapter: the extra one
raised a NotImplemented error and overshadowed the real method.

----------------

- Requiring our dependencies that must be installed with system eggs. We use
the osc.recipe.sysegg in our own buildout to grab them from the system. A
sample config is included in the readme.

- Implemented export csv for snippet_group.

- Added optional legends.

- Add option to show tables in collage view.

- Importing the simplejson module in a different way to please windows in
combination with python 2.6.

----------------

- Added a bit of test setup to make xml test reports possible (for integration
with Hudson). Similarly for coverage reports, also for Hudson. Automatic
code quality monitoring!

- Implemented snippet groups. Snippet groups group similar snippets in
a collage.

- Removed site-specific breadcrumbs.

- Refactored collage view. One can now edit graphs in the collage
view. The graph-only editor has been removed.

- Added an animation slider for showing map layers at specific points in
time. Only shown when there are workspace items that support it.

- Removed graph-properties that were stored in the session.

- Passing extra 'request' keyword argument to all adapter layer() methods.
**Warning**: This needs refactoring in all adapters. Advance warning:
we'll probably refactor the adapters to get the request in their
``__init__()`` method later on.