Changes in version 2.1-4 (2020-07-18)                  

  - Add ReplaceInExpression helper function
  - Update GeneticAlg.int to accept suggestions as a list (Thanks to
    Rafael Klaic)
  - Update vignette with new grammar rules
  - Fix bug in Evolutionary strategy when popsize = 1 (Thanks to Daniel
    Klotz https://github.com/danklotz)
  - Change ga.mutation parameter to fix its typo (Thanks to Daniel Klotz
    https://github.com/danklotz)

                 Changes in version 2.1-3 (2016-07-04)                  

  - Add a supress warnings option to GrammaticalEvolution optimizer
  - Update citation with the information from Journal of Statistical
    Software
  - Fix iteration parameter auto-set overriding manual value bug
  - Fix suggested initial chromosome bug (Thanks to Daniel Klotz
    https://github.com/danklotz)

                 Changes in version 2.1-2 (2015-11-16)                  

  - Changed contact email
  - Added citation information
  - Fixed global function imports in package namespace

                        Changes in version 2.1-1                        

  - Changed package's description, explaining what grammatical evolution
    is.

                        Changes in version 2.1-0                        

  - Added grammar rule concatenation
  - Added iterative grammar rule
  - Improved primitive function printing in the grammar
  - Fixed typos and cleaned up latex in the vignette
  - R-devel CRAN check compatibility fixes

                 Changes in version 2.0-2 (2015-02-11)                  

  - R-devel CRAN check compatibility fix

                        Changes in version 2.0-1                        

  - New Vignettes

                        Changes in version 2.0-0                        

  - CreateGrammar accepts Expressions as well as strings
  - Added predefined multi-point crossover operator to Genetic Algorithm
    Implementation
  - New functions for iterating through the grammar
  - New Grammatical Exhaustive and Random Search Functions
  - New verbose functions to test expressions and grammatical generation
  - New print and summary overload for many objects

                 Changes in version 1.2-1 (2014-10-22)                  

  - Added BNF file parser
  - CreateGrammar default value fixed
  - Brackets around grammar rule identifiers are optional now
  - Minor style improvements

##2014-06-23 - Changes in version 1.1-1

  - Added Some regression tests
  - Changed GA and GE default popsize and itercount to be more useful
  - Added NA and NaN handling for GA
  - Improved print function's styling
  - Changed GA genome len and range arguements name for more clarity
  - EvalExpression returns NA instead of NaN if expression is
    non-terminal

                 Changes in version 1.0-1 (2014-05-20)                  

  - Public Release