Changes in version 0.9 (2013-10-18)
  - First beta version

Changes in version 0.93 (2013-10-29)
  - Beta version following 0.9, 0.91, 0.92
  - New features, bug fixes

Changes in version 1.0 (2014-01-10)
  - Documentation editing, same code as in 0.93
  - Official release in CRAN
  - Publication and code listings in MCFNS

Changes in version 1.1 (2014-05-10)
  - Terminology changes:
    . partition  ->  allotment
    . partition parameter theta  -> asymmetry parameter alpha
  - In function assimilation the parameter "partpar" is now "asym"
  - Taking advantage of changes of function applynb in spatstat 1.35-0,
    now maxN and maxR of function pairwise are not longer mutually exclusive 
  - Added examples of multi-species influence and efficiency functions
  - Default pixel size increased from 0.1 to 0.2

Changes in version 1.2  (2016-03-06)
  - Fix pairwise failure when marks were a simple vector and not a data frame
  - Documentation improvements

Changes in version 1.3  (2018-07-29)
  - Added missing size exponent p in staebler.ker, ommit constant.
  - Minor documentation improvements.
