Changes in version 0.99.6                        

  - Added validity functions for new classes
  - Added tests (~90% coverage at this point)
  - Improved doc:
      - Fixed lines with > 80 characters
      - Moved generics and classes to separate R files

                       Changes in version 0.99.5                        

  - Initiated NEWS.md
  - Internal refactoring:
      - Removed paste calls in condition signals
      - Moved classes and generic definitions in AllClasses.R and
        AllGenerics.R
      - Fixed R minimum working version (4.3.)
      - LazyData set to FALSE following Bioc recommendations
      - Added package-level documentation
  - Improved vignettes