Production version 3.3-3

• relative risk estimation using diffusion.
• smoothing using diffusion.
• tweaks to bandwidth selection.
• spatstat.explore now depends on package spatstat.univar.
• some functions have been moved to spatstat.univar
• spatially weighted median and quantile of mark values.
• adaptive estimation of intensity for split point patterns.
• anisotropic bandwidth selection
• Boyce index.
• integration of functions.
• xhanged defaults for Clark-Evans Test.
• spatstat.explore no longer suggests package maptools