RELEASE_NOTES.md

#0.6

• Updated scalatest dependency to 3.0.1 (from 2.X) minor breaking changes with RNG
• Updated scalacheck to 1.13.4
• Added support for specifying custom generators for fields nested in StructTypes
  • Renamed ColumnGenerator to Column
  • Changed ColumnGenerator to the base class of column generators
  • Added ColumnList to specify custom generators for a list of columns