`HeaderMappingFilter` omplemented with `DelegatingFilterProxy` +
`WebConfig` fixed
<repositories>
<!-- Secured repositories do not allow anonymous access -->
<repository id="releases" policy="release" implementation="file-system" layout="Maven 2" type="hosted" allows-force-deletion="true" checksum-headers-enabled="true" indexing-enabled="true"/>
- <repository id="snapshots" policy="snapshot" implementation="file-system" layout="Maven 2" type="hosted" secured="true" checksum-headers-enabled="true"/>
+ <repository id="snapshots" policy="snapshot" implementation="file-system" layout="Maven 2" type="hosted" secured="false" checksum-headers-enabled="true"/>
<!--
<repository id="proxied-releases" policy="release" implementation="proxy" layout="Maven 2" type="proxy">
