* Add a keyword to lsl.imaging.selfcal functions that will return whether or not a call converged
* Made lsl.readers.buffer.TBFFrameBuffer more robust
* Fixed reference counting in lsl.imaging._gridder
* Moved data used for unit tests from lsl/data to tests/data to keep them out of the install
* Various cleanups to internal regular expressions
* Changed the file downloaders to only show progress for interactive sessions
* Updated possm.py to works with the current version of LSL
* Removed aipy code in lsl.sim.vis in favor of direct calls to aipy
* Added support to the lsl.readers for returning DRX, TBN, and TBF data as "ci8" data
* Added support to the lsl.readers for returning VDIF data as "i8" data