set paging=True as default;fixed index out of bounds exception;closes #52
implemented query.count();closes #50
better logging of warmup
implemented new 'limit' semantics and tests;closes #51;
removed old Query and renamed PagingQuery to Query
removed 'paging' kwarg
cleanup commented-out code
fixed failing test_cache
fixed bug where initial request was coercing to slice request
__getitem__ uses islice to do bounded fetch;code cleanup
removed print from test
improved semantics with limit and count;expanded test coverage;closes #61 #62;
fix tabulate first result in repr
clone query on count
fix how BatchQuery builds query params
better docs;pass filters as Query init arg
Revise docstrings for count() and __len__().
Reflow long docstring lines
pager -> cursor
set paging=True as default;fixed index out of bounds exception;closes #52