Bug in cleanDB (dev branch)

[jonesor]

Using cleanDB produces Errors.

Error in subset.default(newdata_sub, select = c("index", "check_ergodic",  : 
  argument "subset" is missing, with no default

I think this is caused by the way that data(db) and data(db_sub) work.
e.g. lines 59-63 are supposed to build a new object with a column called index but (I think) this doesn't happen.

[patrickbarks]

closed by #43 and subsequent updates