corr_w_scatter: treatment of missing values
Merge branch 'master' of git://github.com/nachocab/clickme
corr_w_scatter: group=NULL as default in translator
corr_w_scatter: circle_radius (for points in scatter) as param
corr_w_scatter: allow pre-calculated correlation matrix
Merge pull request #33 from kbroman/master

Treatment of missing values in corr_w_scatter