[IZPACK-989] ConfigurationInstallerListener - XML merge fixes and improvements (task with subissues)
[IZPACK-989] ConfigurationInstallerListener - XML merge fixes and improvements (task with subissues)
Merge remote-tracking branch 'origin/IZPACK-989' into IZPACK-989

Conflicts:
	izpack-util/pom.xml
[IZPACK-993] Dynamic variables - add configuration attribute to control whether to escape backslashes when reading from option and INI files
Merge pull request #142 from rkrell/IZPACK-989

[IZPACK-989] ConfigurationInstallerListener - XML merge fixes and improvements
Merge pull request #143 from rkrell/IZPACK-993

[IZPACK-993] Dynamic variables - add configuration attribute to control whether to escape backslashes when reading from option and INI files
[maven-release-plugin] prepare release izpack-5.0.0-rc1
[maven-release-plugin] prepare for next development iteration