Lsl

* Fixed a problem with the C readers that manifests itself on 32-bit platforms
* Modified sphinx to be more independent about version numbers and release notes
* Added additional PyDict checks to the _gofast module
* Modified lsl.sim.drx to zero the frame and seconds counts to make the DRX frames ICD compliant
* Fixed a small bug in lsl.sim.tbw/tbn/drx that caused the seconds counts to be wrong

* Added new robust statistical methods
* Added Global Sky Model models to skymap
* Added new smoothing and fitting functions to misc.mathutil
* Added a progress bar for use with long-running applications
* Added in new LWA-1 dipole NEC models
* Re-worked the plotAntenna.py script to use the pre-computed dipole response fits
* Added support for EXCITATION keywords in misc.nec_util
* Added new gofast readers for TBW, TBN, and DRX
* Added better polyphase filter support
* Fixed initialization problems the various lsl.reader Frame objects
* Fixed the TBN ring buffer
* Added support for simulating point sources in TBW and TBN data
* Moved the tests directory out of lsl proper
* Added new offset/average options to drxSpectra and tbnSpectra
* Added new DRSU direct access module for Linux system (experimental)
* Added documentation for the various C extensions
* Updated the dependencies list to capture everything needed for the extensions

* Fixed a couple of typos. in the correlator scripts
* Added more colors to tbwSpectra.py so that all 20 inputs can be plotted
* Fixed problems with DRX frame attributes
* Fixed filter code problems in the DRX writer
* Fixed typo in URL for libnova
* Added a brief tutorial for DRX data
* Fixed a problem determining if a TBW chunk has enough samples to FFT

* Fixed various documentation problems

* Added in the new cable attenuation model
* Re-wrote the TBW reader so that is it ~40% faster
* Removed unnecessary "import" statements in the TBW, TBN, and DRX readers
* Fixed slow frame creation by sim.dp on 64-bit systems
* Added in the new C-based correlator
* Major re-organization of correlator.fx with regards to windowing functions
* Switched from 'processing' to 'multiprocessing'
* Added the possm.py script for each FITS IDI examination
* Fixed tbwSpectra.py and tbnSpectra.py to accommodated the windowing change
* Added drxSpectra.py
* Fixed various problems with the DP data simulator
* Added in option to cable losses in tbwSpectra.py
* Fixed a problem in the sim.vis.Antenna class function get_beam_shape
* Added in a correlator script for TBW
* Added new beam models for use with AIPY based on SLC0015

* Fixed stand indexing error in uvUtils.cableAttenuation
* Fixed Mac OS X tbnSpectra.py plotting problem (Ticket 3)
* Spectra generated by tbwSpectra.py and tbnSpectra.py now agree with IDA v0.1
* Fixed problems with the frame comparison attributes
* Re-wrote the TBN reader so that it is ~20% faster
* Fixed syntax errors in misc.difxconfig
* Fixed MemoryError problem for some systems with tests.test_vdiff (Ticket 7)
* Fixed a problem that caused some systems to assume that LSL was zip safe
* Added new stand mappings that correct the 3/4 pair swaps