Merge branch 'dev-stat' into dev
tidied the help
tweaked output format of Complexity
added new test data
alphabetized the alphabetizeable
simplified Fasta2csv, changed default delimiter to TAB
simplified Perm, tweaked output
tweaked Reverse output
totally redid Sort
removed stupid capitalization from help
implemented head and tail subcommands
moved seldom used imports to local context
removed deprecated field handling from FSeq
housekeeping
fixed extra character in first line of colored grep
updated TODO
improved Grep color handling
corrected Clean color handling
fixed logic bug in counter_caser that dropped non-letters
updated Colors and added ColorAA