Minor housekeeping.  Changed sites to include (no western sites, moved southern boundary), and moved the command to set all NAs to Zeros to the checkFileCreation chunk.
 * Fixed date output from the **Methods** to add the correct date of access for the Neotoma output.
 * Renamed the code chunk that performs bootstrapping.
 * `right.age` becomes a boolean vector, the error on line 85 is fixed.
 * Moved the dissimilarity calculation out of the for loop so it only needs to be run once, with re-sorting of the names so that each site is sampled only once.