update contigs cut up

This adds cut up contigs up till running concoct. The evaluation part still needs to be updated.
Merge pull request #85 from inodb/develop

update contigs cut up
fix error with 0 hits for a cluster
update cluster plots and heat map part
update extra validate.pl parameter
update cut up 10K until linkage
Update rpsblast to not have a parameter for path, this is just a normal binary so should be in your PATH. Only COG database env variable is now necessary to set and throws an error if not set
Update COGPlot to use ggplot2 > v0.9 plotting parameters.
Remove some old misplaced text
Update linkage for cut up contigs 10K
Merge pull request #86 from inodb/develop

Updated complete_example with cut up 10K contigs until linkage part
Merge branch 'master' into develop
Bumped version to 0.3.2
Using concoct_latest docker image in documentation
Changed from binnisb to binpro as docker source
Merge pull request #87 from alneberg/bump_version

Bump version to 0.3.2 and change docker reference to binpro/concoct_latest
Merge pull request #88 from BinPro/develop

New version 0.3.2