Cleanup English word lists

[fehmer]

I applied ispell with the american-insane dictionary for all english wordlists. Here are the results, in case someone wants go through them and clean up the lists.

english_10k_errors.csv

english_25k_errors.csv

english_450k_errors.csv

english_commonly_misspelled_errors.csv

english_medical_errors.csv

[byseif21]

#6767
#7670
#7671