Add a Bitdeli badge to README
Merge pull request #12 from bitdeli-chef/master

Add a Bitdeli Badge to README
Merge branch 'development'
do not use Rcpp Exports, serious memory implications for repeated calls [bug fix] ;
update administrative files for changes in bugfix version;
bugfix for memory bug caused by Rcpp Export
cleanup intermediate vign files
add more robust checking
update version in readme