updated to make uclust the default taxonomy assigner. also updated ancient documentation
updated to make uclust the default taxonomy assigner
updated to make uclust the default taxonomy assigner
updated changelog
updated unit tests to reflect uclust as the default tax assigner
updated unit tests to reflect uclust as the default tax assigner
preparing for updated output files
updated test output files
preparing for updated output files
updated output files
Update docs to reference PyNAST 1.2.1

Fixes #1203.
Merge pull request #1204 from jrrideout/issue-1203

Update docs to reference PyNAST 1.2.1
Merge branch 'master' into issue-1195

Conflicts:
	ChangeLog.md
fixed typo
changed RDP reference to reflect new taxonomy assigner default
updated list of available taxonomy assigners
changed RDP reference to reflect new taxonomy assigner default
changed RDP reference to reflect new taxonomy assigner default
updated commands and parameters file to reflect that RDP is no longer the default assigner
changed RDP reference to reflect new taxonomy assigner default