2.0.4

Added

• If the programName passed to mainBody is null, then the
  system property com.xenomachina.argparser.programName is used, if set.

• The parseInto method can be used as an inline alternative to force.
  Thanks @shanethehat!

• Issue #24:
  default can now accept a lambda, making it possible to defer computation of
  defaults until actually required.
  Thanks @shanethehat!

Changed

• All instances of progName have been renamed to programName.

• The gradle wrapper has been updated.
  Thanks @ColinHebert!