Follow Maven 3 requirements and recommendations

ERROR: Failed to parse POMs
java.io.IOException: remote file operation failed: /home/hudson/tmp/workspace/addons_nuxeo-platform-audit-web-access-master at hudson.remoting.Channel@16fda1c4:joyeux
	at hudson.FilePath.act(FilePath.java:910)
	at hudson.FilePath.act(FilePath.java:887)
	at hudson.maven.MavenModuleSetBuild$MavenModuleSetBuildExecution.parsePoms(MavenModuleSetBuild.java:943)
	at hudson.maven.MavenModuleSetBuild$MavenModuleSetBuildExecution.doRun(MavenModuleSetBuild.java:671)
	at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:565)
	at hudson.model.Run.execute(Run.java:1670)
	at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:519)
	at hudson.model.ResourceController.execute(ResourceController.java:88)
	at hudson.model.Executor.run(Executor.java:231)
Caused by: hudson.remoting.ProxyException: hudson.maven.MavenModuleSetBuild$MavenExecutionException: org.apache.maven.project.ProjectBuildingException: Some problems were encountered while processing the POMs:
[FATAL] Non-resolvable parent POM: Could not find artifact org.nuxeo:nuxeo-addons-parent:pom:5.9.5-SNAPSHOT in internal-snapshots (http://maven.in.nuxeo.com/nexus/content/groups/internal-snapshots) and 'parent.relativePath' points at wrong local POM @ line 4, column 11

[WARNING] Some problems were encountered while building the effective model for org.nuxeo.ecm.platform:nuxeo-rest-api-test:jar:5.9.5-SNAPSHOT
[WARNING] 'dependencies.dependency.(groupId:artifactId:type:classifier)' must be unique: org.nuxeo.ecm.platform:nuxeo-platform-audit-api:jar -> duplicate declaration of version (?) @ line 111, column 17
[WARNING] 'dependencies.dependency.(groupId:artifactId:type:classifier)' must be unique: org.nuxeo.ecm.platform:nuxeo-platform-audit-core:jar -> duplicate declaration of version (?) @ line 116, column 17
[WARNING] 'dependencies.dependency.(groupId:artifactId:type:classifier)' must be unique: org.nuxeo.runtime:nuxeo-runtime-datasource:jar -> duplicate declaration of version (?) @ line 122, column 17
[WARNING] 
[WARNING] Some problems were encountered while building the effective model for org.nuxeo.runtime:nuxeo-javaagent-bridge:jar:5.9.5-SNAPSHOT
[WARNING] 'dependencies.dependency.(groupId:artifactId:type:classifier)' must be unique: com.sun:tools:jar -> duplicate declaration of version 1.7.0 @ line 58, column 17
[WARNING] 
[WARNING] Some problems were encountered while building the effective model for org.nuxeo.ecm.platform:nuxeo-importer-scan:jar:5.9.5-SNAPSHOT
[WARNING] 'dependencies.dependency.(groupId:artifactId:type:classifier)' must be unique: org.nuxeo.ecm.platform:nuxeo-importer-core:jar -> duplicate declaration of version (?) @ line 25, column 17