updated to use open-reference otu picking and core_diversity_analyses.py

need to make an udpate to qiime to use change from #741.
updated to use open reference otu picking and core_diversity_analyses.py
added check_id_map.py step
Merge branch 'master' into illumina-tutorial-updates

Conflicts:
	examples/ipynb/illumina_overview_tutorial.ipynb
more updates to the tutorial following re-organization of data in the tutorial tgz
fixed typos
updated to fix some bugs in the commands
removed output from each command
includes output for a full successful run
updated to include text from rst version
removed output
updated to point readers to the ipynb file through nbviewer
updated to pull new tutorial data
updated to point to ipynb version through nbviewer
fixed error in previous commit
updated to make the link a little more visible
updated ipynb tutorial pages to look more similar to one another
removed extra copy of ipynb
re-organization and naming of some tutorials
Merge branch 'master' into illumina-tutorial-updates