DOC: updated for the moving pictures tutorial 1.9.0 data

~~**NOT READY FOR MERGE**~~

Various updates, included collapsing all inputs into a single fastq file (which is a more common use case than multiple fastq files) and use of the ``--recover_from_failure`` option for ``core_diversity_analyses.py`` to add categorical analyses. 

Working on some strange clustering of samples - it's possible that I have some mislabeling here. 
If the base GG or coreset paths do not exist, incorrect lines will be written to the QIIME config file. If users re-execute the cell, the incorrect lines won't be removed (they'll only be added to since you're appending). Can you update the logic here to only write lines if both GG and coreset paths exist?