Lsl

* 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

* Added new "tutorial" style documentation for various parts of LSL
* Added scripts tbwSplit.py and tbnSplit.py to split large TBW and TBN files down to more manageable sizes

* Fixed various typos. in correlator.fx, misc.beamformer, and reader.buffer
* Added "close" function to writer.fitsidi

* New setuptools-based build system
* New, improved documentation
* Added post-acquisition beam forming module
* Added in modules for writing simulated data to the S60, TBW, TBN, and DRX raw data formats
* Added a module for simulated basic test signals in TBW, TBN, and DRX data
* Moved the lwa_user script 'astrostatus.py' into the scripts directory
* Fixed the FITS IDI writer
* Fixed a couple of bugs dealing with incorrect chunking of data in scripts/tbwSpectra.py and scripts/tbnSpectra.py

* Added in other modules from the lwa_user library developed by NRL