2014-06-10  Gerrit Holl  <gerrit.holl@utoronto.ca>:

	* pyatmlab-0-0-32

	* pyatmlab/collocations.py(CollocatedDataset):

	- Bugfix: when reading many primaries, keep track of what secondaries
	already were returned; we don't want [(A1, B1), (A2, B1)] if both A
	and B are going to be concatenated in one yield!

	- Bugfix: have a small timedelta when considering segments, so we
	don't try to find new collocations for a 0.001 second period.

	- Bugfix: Make sure batches that are written to disk cover the full
	segment, without leaving any gaps, even if those gaps are verified to
	be free of collocations.

	* pyatmlab/datasets.py:

	- Use an OrderedDict rather than a dict when collecting header and
	body info, to guarantee that the subsequently converted dtype is
	consistent.

	- Give up on masked arrays.  They are buggy as hell.