2014-02-14:
 * Fixed broken demos.
 * Made vignette cover page conformable with other pbd packages.
 * Updated vignette quotes.
 * Removed experimental vignette features.

2014-02-02:
 * Incorporated pbdR latex macro.
 * Fixed multiply-defined label problem in vignette.
 * Updated loglikelihood chapter.

2014-02-01:
  * Add more applications to Vignettes.
  * Finish Bayesian and MCMC applications.

2014-01-14:
  * Vignetted copyright updated.

2013-08-06:
  * Add a Bayesian MCMC chapter to vignette.
  * Add a galaxy velocity example to demo.

pbdDEMO 0.1-1 (2013-7-11) --------------------------------------------------

2013-7-10:
  * Fixed load_balance() bug.
  * Fixed vignette installation issues.

2013-06-20:
  * Expanded section on parallelism basics in vignette.
  * likelihood, pmclust, and phyclust applications added to vignette.
  * Change SPMD/spmd to GBD/gbd.

pbdDEMO 0.1-0 (2013-3-25) --------------------------------------------------

2013-03-12:
  * Added cover to vignette.
  * Changed title of vignette.
  * Cleaned up for CRAN.

2013-02-07:
  * Add pbdNCDF4 examples.
  * Add SPMD data matrix major for load balance functions, and
    spmd2dmat and dmat2spmd functions.
  * Add ncvar_put_* and ncvar_get_*, and simplify their examples.
  * Add NetCDF4 chapter to vignette.

2012-11-27:
  * Added pbdBASE and pbdDMAT examples.
  * Added numerous functions.

2012-11-06:
  * Add pbdMPI and pbdSLAP examples.
  * Add vignette with tons examples.
  * Add demo functions.
  * Add load.balance and unload.balance functions.
  * Add spmd2dmat and dmat2spmd functions.

2012-09-11:
  * Package created
  * DMAT - Added sql reader
  * DMAT - Added huge random matrix generation
