Initialized on September 16, 2011.

09/16: initialize the package.
11/13: update perm.test to enable user-defined fun's.
11/15: add gof function for 'em' (maybe also 'bde' or known 
       distributions by distribution names (character)).
11/27: merge binem with bfmm.  Fixed several bugs in mixedmodel.c
       Adjust AIC/AICc?BIC due to the data transformation.
11/28: density: for transformed/untransformed data; 
       and x0 given or not given.
12/31: change package name to BDA.  Add functions/data for CSDA paper.
1/6: change package name back to bda.
