Cosmetic improvements in mvnbuild.bat, mvnbuild.sh

Command line
  mvn clean compile site package
uses 3 different Maven lifecycles: The clean, build and site lifecycle.
Within the build lifecycle, calling a later phase always includes
running earlier ones, too. I.e., 'compile package' is identical to just
'package'. Therefore, rewrite the command line to
  mvn clean package site,
calling exactly one phase per lifecycle.
2 files changed