elaborate based on discussion with AZ

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/partykit@597 255f4249-2263-4417-b1ea-8498779e27a7
add bootstrap example to Titantic dataset

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/partykit@598 255f4249-2263-4417-b1ea-8498779e27a7
note demo

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/partykit@599 255f4249-2263-4417-b1ea-8498779e27a7
some small memory consumption and speed comparisons

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/partykit@600 255f4249-2263-4417-b1ea-8498779e27a7
further adapted comments about choice of alpha

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/partykit@601 255f4249-2263-4417-b1ea-8498779e27a7