named clickSelects

[tdhock]

clickSelects is already a character vector but the names are ignored. If names are present we could interpret it to mean names=selectors, values=column names.

OPTIMIZATION: for the prostateLasso test, it would be great to be able to specify clickSelects=c(arclength="arclength.click") even if there is no column named arclength in the data -- this would mean to update the selector called "arclength" with the value in column "arclength.click" -- less disk space, and faster compiling.