Minor fix for mhas crashing if an attribute exists but is undefined
Merge pull request #259 from bartbutler/release0.9

Minor fix for mhas crashing if an attribute exists but is undefined
Merge branch 'release/0.9' of github.com:/cscheid/rcloud into develop
Merge branch 'release/0.9' into develop

Conflicts:
	htdocs/lib/js/dcplot/dcplot.js
Merge branch 'develop' of https://github.com/att/rcloud into develop
make submodule for dcplot pointing to att/dcplot.js
semicolon
switch to dcplot dev
bring back devicePixelRatio state so that CairoPNG images are retina-enabled. Closes #205
Merge branch 'develop' of https://github.com/att/rcloud into develop
dcplot update
Merge branch 'release/0.9' into develop

Conflicts:
	htdocs/js/rcloud_bundle.min.js
	htdocs/lib/js/dcplot
	htdocs/lib/js/dcplot/dcplot.js
missing / updated files from master
only force show code when cell is R

don't show Markdown source that happens not to contain R
fixes #272
merge develop into master this once to stop submodule headaches

git submodule does not take well to having a submodule in one
branch but not another.  since that was the only difference between
master and develop at this point, i'm merging it in.

Merge commit '7acb95813b70d137fdffc610638ca09e4553e958'

Conflicts:
	htdocs/js/rcloud_bundle.min.js