Fixed filepath in shotgun tutorial.
test data for parallel_merge_otus
added random.choice, passing queues, removed some comments
passing queue
test data with unique internal nodes
internal nodes are now unique
addressing Jai's comments
cleaned up cmd in script usage
Merge pull request #1064 from wasade/issue1058

Issue1058
Refactored summarize_taxa.py to use BIOM API.

Virtually no interface changes, but underneath the code has been mostly rewritten to use the BIOM API for binning/collapsing. This also brings BIOM taxon tables one step closer to being fully integrated into QIIME.

Also generally cleaned things up and added more unit tests.

This was necessary for #998.
Added more details to lower/upper percentage docs.
unique and simple internal merge nodes
Merge pull request #1067 from wasade/simple_int_merge_nodes

unique and simple internal merge nodes
Added initial one-to-many support.

Currently doesn't respect the 1-M handling method specified by the user, but the tests pass!
Added support for 'first' and 'add' 1-M modes.
Added strict=True to collapse call.
Added absolute_abundance optional argument.
Added support for divide 1-M relationship mode.
Read mapping now handles one-to-many metadata.
Added get_first_metadata_entry.

make_otu_heatmap* scripts now work with 1-M data.