BLD: initial coveralls config
More and more! weird coverage bug though...
BUG: Table.sort_order didn't retain Table.type

Calling Table.sort_order on a Table would return a seemingly identical
table the only difference was that the returned value would have a
Table.type of None regardless of whatever that inital value was.

I've also added an Examples section to this method.
Merge pull request #474 from ElDeveloper/sort-order

BUG: Table.sort_order didn't retain Table.type
Merge pull request #472 from Jorge-C/full_rows_cols

Full rows cols
Fix problems with convert_biom_to_table
Merge pull request #478 from ElDeveloper/convert-biom-to-table-fix

BUG: Use load_table in convert_biom_to_table
ENH/API: Table.data can now take `dense`
DOC: added example to Table.data
MAINT: simplified Table.iter
ENH/API: added Table.iter_pairwise
DOC: updates to changelog
STY: pep8...
STY: moved iter_ construction, thanks @teravest\!
ENH: subsample can now do by_id
MAINT: minor refactor of subsample code
ENH: method to generate unlimited subsamples
DOC: addressing comments by @adamrp and @ElDeveloper
DOC: addressing comments by @adamrp
DOC: changelog additions, comment by @ElDeveloper