FindRecalSeries: Adjust the function to work with input dataframe containing spaces in colnames

[KristinaGomoryova]

The RecalList function returns a dataframe containing spaces in the column names (e.g. Mass Range). When importing the data into R, all spaces get replaced by dots (resulting in Mass.Range).

I think we should do colnames(df) <- gsub(" ", ".", colnames(df)) to ensure we get unified input

[hechth]

We should rather change the colnames of the exported columns than of the import.