izpack/izpack — pull request #291 by rkrell (2014-11-07 15:36:34+00:00)
Title: [IZPACK-1180] ConfigurationInstallerListener: Nested <entry> remains empty if it didn't exist before

Fixes https://jira.codehaus.org/browse/IZPACK-1180:

If a property file is created by ConfigurationListener, or nested

doesn't still exist before applyiong configuration actions, the nested entries are left empty and their value attribute isn't applied at all.
Example
```xml

```
if db.properties doesn't exist the ConfigurationInstallerListener leaves it in this state:
```
driver=
url=
file=
user=
pass=
```