added stat_ellipse
committing just the stat_ellipse changes
Not necessary to declare ggplot2:::Stat
added a euclidian distance option
Fix fortify-spatial namespace issue (#879)

Fixes fortify error when sp namespace is not loaded.
https://github.com/hadley/ggplot2/issues/879
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Avoid merge conflicts in NEWS file

by using the `union` merge strategy.

See also http://krlmlr.github.io/using-gitattributes-to-avoid-merge-conflicts/.
fix: use height_cm instead of width_cm
New themes panel.margin.x and panel.margin.y

Fixes #839

Conflicts:
	NEWS
	R/facet-grid-.r

Resolved trivially.
Roxygenize
Merge pull request #913 from krlmlr/gitattributes-NEWS

Avoid merge conflicts in NEWS file
Re-roxygenise
Tweaking checklist
fix vertical justification for rotated text
add "none" to documentation of theme() for parameter legend.position

Fixes #829
update Rd file
update NEWS
First attempt at staticdocs auto-deploy