First test.
Tests for more constructor failures.
Commit for review on Table constructor change.
Removed unused code, finished test coverate for test_table_api.
Removed unused statement.`
Altered TableExpr _len in blaze/expr/table. Trying to put it into api/table but importing compute causes errors.
Changed _len method to method found in api/table. Removed old method.
Removed pytest fixtures, replaced with globals. Added error test for Column into nd.array to make sure we add a test when it is fixed.
Reverted to old TableExpr __len__.
Merge branch 'master' into HEAD

Conflicts:
	blaze/api/table.py
	blaze/api/tests/test_table_api.py
Merge pull request #1 from mrocklin/brittain-table-testing

Brittain table testing
Trivial commit to rerun Travis build.
Another trivial commit. Build failed to connect to anaconda repository.
Merge pull request #699 from brittainhard/test_table_api

[WIP] Test table api