Finished release v0.4.

* release/v0.4:
  TRIVIAL fixing CONDITION_DURING_UPGRADE_AND_UNINSTALL
  TRIVIAL fixing tests
  HOSTDEV-1290 removing test_upgrade with_custom_actions=False
  TRIVIAL logging the product.wxs
  TRIVIAL refactoring conditions
  TRIVIAL adding uninstall debug
  cleaning up
  TRIVIAL fixing print
  TRIVIAL more debugging
  TRIVIAL printing the logfile for debugging
  TRIVIAL adding debug information to tests
  HIP-848 fixing prerm
  HIP-848 fixing tests
  HIP-848 calling close-applcation recipe in rpm/deb scripts
  HIP-848 custom action for killing open applications during uninstall/upgrade
  HOSTDEV-1270 updated readme
  fix tests
  buildout.cfg: adding infi.recipe.buildout_logging to requirements
  HOSTDEV-1270 using infi.recipe.buildout_logging
HIP-849 adding progress bar text in custom actions