start of pip setup
empty lists to table_factory are no longer allowed

* not addressing for dense as it is being dropped
* raises TableException if [] is passed in as data
added Table.nonzeroCounts
* counts over axes
* can be optimized much further for sparse matrices
* did not test for dense as we are dropping support
Move import tests from setup to biom.__init__

Addresses a comment from @wasade in #230
Merge pull request #245 from adamrp/move_import_tests

Move import tests from setup to biom.__init__
Merge branch 'master' of github.com:biom-format/biom-format into pip
did the things
removed pyqi and numpy imports
Merge pull request #230 from wasade/pip

start of pip setup
Merge pull request #244 from wasade/nonzeroCounts

added Table.nonzeroCounts
addressing Jai's comments
Merge branch 'dec_flag' of git://github.com/biom-format/biom-format into dec_flag
Merge pull request #243 from wasade/tablefactory_indexerror

empty lists to table_factory are no longer allowed
Merge branch 'master' of git://github.com/biom-format/biom-format into dec_flag

Conflicts:
	biom/table.py
Remove test code for Dense tables
Remove SparseOTUTableTests
removed all the other table types
removed refs to _biom_type
SparseTable and constructors removed
dense is gone.