Merge branch 'google-earth-flytospeed'
Use beforedestroy like in other components.
Merge branch 'google-earth-unregister-events-on-destroy'
fix up onlyShowOnFirstLoad option
Check for Card layout before creating the GE plugin instance.

After #99, we need this to remain compatible with our GoogleEarth plugin.
provide more feedback how many features there are too many in the timeline
when clicking on a note in the timeline, show the feature editor
New simple histogram component.

This will be used in styling dialogs to create classifications interactively.
apidoc fixes
GeoExt from base repository.
Updating buildkit.
Update buildkit.
Updating build config to exclude OpenLayers.
Don't add the google loader script too early.

The google loader appends elements to document.body, which fails if document.body is not yet available. So we wait with appending the loader script until document.body is available.
correct typo in comment
prevent duplicate features in timeline for annotations when modifying exisiting annotations
make sure annotations make it to the timeline, even if it has not yet rendered
more docs for timeline panel
more efficient data loading for timeline (see #89)
correct the logical of vertical slider movemement, was not working properly