New version: 0.3.1

 - The COG_table script can be ran without eutils, using the scgs/cdd_to_cog.tsv file.
 - A script cut_up_fasta.py was added, that can be used to produce contigs of a specified length out of a full assembly.
 - A script extract_fasta.py was added, to create fasta files for each bin after clustering.
 - Speedup of the c-concoct executable.
 - Validate.pl script was enabled to use contig length to weigh the results.
 - Tests for gen_input_table script
 - The genomes used for scg extraction was added to scgs/