[IZPACK-1065] - Inconsistent artifact extension for deploy
Merge pull request #176 from rkrell/IZPACK-1065

[IZPACK-1065] - Inconsistent artifact extension for deploy
[IZPACK-1066] - Improve usability of resolving system properties as IzPack variables
Merge pull request #177 from rkrell/IZPACK-1066

[IZPACK-1066] - Improve usability of resolving system properties as IzPack variables
Do not throw NPE when allowing to have no entried with the MultipleFileField component
Fix in UserPathInputPanel same problem than ZPACK-969 mustExist
parameter is ignored by TargetPanel
[IZPACK-1067] - ConfigurationInstallerListener - action for dedicated xpath expression does not work
Merge pull request #180 from rkrell/IZPACK-1067

[IZPACK-1067] - ConfigurationInstallerListener - action for dedicated xpath expression does not work
Merge pull request #178 from mtjandra/IZPACK-1068

[IZPACK-1068] Fix for NPE on MultiField
Merge pull request #179 from jalios/master

Fix ZPACK-969 in UserPathInputPanel
Merge pull request #179 from jalios/master

Fix ZPACK-969 in UserPathInputPanel
Merge branch 'master' of https://github.com/rkrell/izpack into rkrell-master