Version numbering:

0 for alpha (status)
1 for beta (status)
2 for release candidate
3 for (final) release

bda_1.2.7-31:  algorithms for binned data analysis,
  data with rounding errors.

bda_2.0.11-4: 
  (1) to update binning function and weighting function.  
  (2) to add lprde (no SCB included yet).

2012/11/05:  
  (1) to add survival function estimation, 
  (2) to provide a function to weight data for users. 
  (3) to update keywords in the Rd files.
  (4) to add bandwidth selector 'erd'
  (5) add an bandwidth option for 'aMAE' or 'MAE'.

2012/11/10:
  (1) fixed a bug of different length in .fftkde
  (2) fixed a bug in computing WIQR
  (3) add to binning an option such that if binwidth is given
      but 'lb' is missing, we set lb = min(x)-binwidth/2.

2012/11/14:
  (1) remove startup message
  (2) rewrite qiwr function
  (3) fix a bug in wkde --> "bw"/"bandwidth"
  (4) remove "amae" from .wkde

2012/11/19:
  (1) add range to "mae" and make sure the lower limit is non-negative

2013/02/08:
  (1) add 'bdde' function to estimate from data that are prebinned --
	divided in to several groups (intervals).
  (2) add two more distribution families other than "weibull" -- 
	ewd and datum. 