small updates to Snakefile
small updates to Snakefile

 - removes sub-wlsubj105 from SUBJECTS (haven't scanned yet, need to
   run analyses)

 - removes FINAL_SUBJECTS (can do the conditional when I need to)

 - updates noise_ceiling_monte_carlo_overall to include more of the
   wildcards in the output instead of hard-coding them

 - adds noise ceiling monte carlo overall output to rule all

billbrod/spatial-frequency-preferences,billbrod/spatial-frequency-preferences,billbrod/spatial-frequency-preferences