fixed saved file filename in example
Squashed 'subtree/bokehjs/' changes from 1b484bc..cf2be30

cf2be30 add support for (optional) hidpi mode
e0f3b5b Merge branch 'subtree'
c324cee adjust properties to accomodate null colors when there is not spec, i.e for guides
ead76f4 line renderer should also perform do_stroke check
85f5a48 Merge branch 'subtree'
50fd99a grid should check do_stroke before rendering
a0c5f97 Merge branch 'subtree'
016c553 fix merge from bokehjs
4f309a7 Merge commit '5fcb35846b5bfca65ab3e3b273ee6fec1e855441'
330ccec legend renderer need to check do_stroke and do_fill

git-subtree-dir: subtree/bokehjs
git-subtree-split: cf2be306e31ed7cf12467515a70d25c5f13bbae0
Merge commit '1f45af529aec0e1a2ce45f6b90bad80ceedf547d'