New mixture estimator.

git-svn-id: https://svn.cms.waikato.ac.nz/svn/weka@11315 e0a1b77d-ad91-4216-81b1-defd5f83fa92
Univariate estimators are now serializable.

git-svn-id: https://svn.cms.waikato.ac.nz/svn/weka@11316 e0a1b77d-ad91-4216-81b1-defd5f83fa92
Estimators can now be set directly.

git-svn-id: https://svn.cms.waikato.ac.nz/svn/weka@11317 e0a1b77d-ad91-4216-81b1-defd5f83fa92
UnivariateDensityEstimators now implement RevisionHandler and have a globalInfo method.

git-svn-id: https://svn.cms.waikato.ac.nz/svn/weka@11318 e0a1b77d-ad91-4216-81b1-defd5f83fa92
Added UnivariateDensityEstimator.

git-svn-id: https://svn.cms.waikato.ac.nz/svn/weka@11319 e0a1b77d-ad91-4216-81b1-defd5f83fa92
Added entries for UnivariateDensityEstimator.

git-svn-id: https://svn.cms.waikato.ac.nz/svn/weka@11320 e0a1b77d-ad91-4216-81b1-defd5f83fa92