[GEOS-7755] [GEOS-7269] [GEOS-7268][GEOS-7758] Makes JMS plugin listen on all services and settings events and be aware of virtual services (backport 2.8.x)

[nmco]

Makes JMS plugin listen on all service events (add, modify and remove) and also makes the plugin aware of virtual services. This pull request also makes the JMS plugin aware of settings events.

Tests for the reported issues were added.

The following issues reports different problems for the same root cause:

• https://osgeo-org.atlassian.net/browse/GEOS-7755
• https://osgeo-org.atlassian.net/browse/GEOS-7269
• https://osgeo-org.atlassian.net/browse/GEOS-7268
• https://osgeo-org.atlassian.net/browse/GEOS-7758

This is a backport of this pull request: #1842

[nmco]

The build fail seems to be unrelated, the failing module is Application Schema Integration Test and this pull requests changes are contained in the JMS community module.

The build fails because of some Application Schema Integration Test tests compilation error:

[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR : 
[INFO] -------------------------------------------------------------
[ERROR] /home/travis/build/geoserver/geoserver/src/extension/app-schema/app-schema-test/src/test/java/org/geoserver/test/AbstractAppSchemaTestSupport.java:[51,24] error: cannot find symbol
[ERROR]  package org.geotools.jdbc
/home/travis/build/geoserver/geoserver/src/extension/app-schema/app-schema-test/src/test/java/org/geoserver/test/AbstractAppSchemaTestSupport.java:[695,14] error: cannot find symbol
[ERROR] /home/travis/build/geoserver/geoserver/src/extension/app-schema/app-schema-test/src/test/java/org/geoserver/test/SRSReprojectionTest.java:[27,24] error: cannot find symbol
[ERROR]  package org.geotools.jdbc
/home/travis/build/geoserver/geoserver/src/extension/app-schema/app-schema-test/src/test/java/org/geoserver/test/NestedIdSupportTest.java:[23,24] error: cannot find symbol
[ERROR]  package org.geotools.jdbc
/home/travis/build/geoserver/geoserver/src/extension/app-schema/app-schema-test/src/test/java/org/geoserver/test/PolymorphismWfsTest.java:[23,24] error: cannot find symbol
[ERROR]  package org.geotools.jdbc
/home/travis/build/geoserver/geoserver/src/extension/app-schema/app-schema-test/src/test/java/org/geoserver/test/SimpleAttributeFeatureChainWfsTest.java:[24,24] error: cannot find symbol
[ERROR]  package org.geotools.jdbc
/home/travis/build/geoserver/geoserver/src/extension/app-schema/app-schema-test/src/test/java/org/geoserver/test/FeatureChainingWfsTest.java:[34,24] error: cannot find symbol
[ERROR]  package org.geotools.jdbc
/home/travis/build/geoserver/geoserver/src/extension/app-schema/app-schema-test/src/test/java/org/geoserver/test/AbstractAppSchemaTestSupport.java:[679,44] error: cannot find symbol
[ERROR]  class AppSchemaDataAccessConfigurator
/home/travis/build/geoserver/geoserver/src/extension/app-schema/app-schema-test/src/test/java/org/geoserver/test/AbstractAppSchemaTestSupport.java:[713,8] error: cannot find symbol
[ERROR]  class AbstractAppSchemaTestSupport
/home/travis/build/geoserver/geoserver/src/extension/app-schema/app-schema-test/src/test/java/org/geoserver/test/AbstractAppSchemaTestSupport.java:[713,50] error: cannot find symbol
[ERROR] /home/travis/build/geoserver/geoserver/src/extension/app-schema/app-schema-test/src/test/java/org/geoserver/test/SRSReprojectionTest.java:[258,19] error: cannot find symbol
[ERROR]  class SRSReprojectionTest
/home/travis/build/geoserver/geoserver/src/extension/app-schema/app-schema-test/src/test/java/org/geoserver/test/NestedIdSupportTest.java:[118,8] error: cannot find symbol
[ERROR]  class NestedIdSupportTest
/home/travis/build/geoserver/geoserver/src/extension/app-schema/app-schema-test/src/test/java/org/geoserver/test/NestedIdSupportTest.java:[145,19] error: cannot find symbol
[ERROR]  class NestedIdSupportTest
/home/travis/build/geoserver/geoserver/src/extension/app-schema/app-schema-test/src/test/java/org/geoserver/test/PolymorphismWfsTest.java:[759,19] error: cannot find symbol
[ERROR]  class PolymorphismWfsTest
/home/travis/build/geoserver/geoserver/src/extension/app-schema/app-schema-test/src/test/java/org/geoserver/test/PolymorphismWfsTest.java:[784,19] error: cannot find symbol
[ERROR]  class PolymorphismWfsTest
/home/travis/build/geoserver/geoserver/src/extension/app-schema/app-schema-test/src/test/java/org/geoserver/test/PolymorphismWfsTest.java:[809,19] error: cannot find symbol
[ERROR]  class PolymorphismWfsTest
/home/travis/build/geoserver/geoserver/src/extension/app-schema/app-schema-test/src/test/java/org/geoserver/test/PolymorphismWfsTest.java:[811,8] error: cannot find symbol
[ERROR]  class PolymorphismWfsTest
/home/travis/build/geoserver/geoserver/src/extension/app-schema/app-schema-test/src/test/java/org/geoserver/test/SimpleAttributeFeatureChainWfsTest.java:[419,8] error: cannot find symbol
[ERROR]  class SimpleAttributeFeatureChainWfsTest
/home/travis/build/geoserver/geoserver/src/extension/app-schema/app-schema-test/src/test/java/org/geoserver/test/SimpleAttributeFeatureChainWfsTest.java:[444,19] error: cannot find symbol
[ERROR]  class SimpleAttributeFeatureChainWfsTest
/home/travis/build/geoserver/geoserver/src/extension/app-schema/app-schema-test/src/test/java/org/geoserver/test/SimpleAttributeFeatureChainWfsTest.java:[477,20] error: cannot find symbol
[ERROR]  class SimpleAttributeFeatureChainWfsTest
/home/travis/build/geoserver/geoserver/src/extension/app-schema/app-schema-test/src/test/java/org/geoserver/test/SimpleAttributeFeatureChainWfsTest.java:[504,19] error: cannot find symbol
[ERROR]  class SimpleAttributeFeatureChainWfsTest
/home/travis/build/geoserver/geoserver/src/extension/app-schema/app-schema-test/src/test/java/org/geoserver/test/SimpleAttributeFeatureChainWfsTest.java:[531,19] error: cannot find symbol
[ERROR]  class SimpleAttributeFeatureChainWfsTest
/home/travis/build/geoserver/geoserver/src/extension/app-schema/app-schema-test/src/test/java/org/geoserver/test/SimpleAttributeFeatureChainWfsTest.java:[565,19] error: cannot find symbol
[ERROR]  class SimpleAttributeFeatureChainWfsTest
/home/travis/build/geoserver/geoserver/src/extension/app-schema/app-schema-test/src/test/java/org/geoserver/test/FeatureChainingWfsTest.java:[1407,8] error: cannot find symbol
[ERROR]  class FeatureChainingWfsTest
/home/travis/build/geoserver/geoserver/src/extension/app-schema/app-schema-test/src/test/java/org/geoserver/test/FeatureChainingWfsTest.java:[1436,19] error: cannot find symbol
[ERROR]  class FeatureChainingWfsTest
/home/travis/build/geoserver/geoserver/src/extension/app-schema/app-schema-test/src/test/java/org/geoserver/test/FeatureChainingWfsTest.java:[1462,19] error: cannot find symbol
[ERROR]  class FeatureChainingWfsTest
/home/travis/build/geoserver/geoserver/src/extension/app-schema/app-schema-test/src/test/java/org/geoserver/test/FeatureChainingWfsTest.java:[1480,47] error: cannot find symbol
[ERROR]  class AppSchemaDataAccessConfigurator
/home/travis/build/geoserver/geoserver/src/extension/app-schema/app-schema-test/src/test/java/org/geoserver/test/FeatureChainingWfsTest.java:[1482,55] error: cannot find symbol
[ERROR]  class AppSchemaDataAccessConfigurator
/home/travis/build/geoserver/geoserver/src/extension/app-schema/app-schema-test/src/test/java/org/geoserver/test/FeatureChainingWfsTest.java:[1493,12] error: cannot find symbol
[ERROR]  class FeatureChainingWfsTest
/home/travis/build/geoserver/geoserver/src/extension/app-schema/app-schema-test/src/test/java/org/geoserver/test/FeatureChainingWfsTest.java:[1517,23] error: cannot find symbol
[ERROR]  class FeatureChainingWfsTest
/home/travis/build/geoserver/geoserver/src/extension/app-schema/app-schema-test/src/test/java/org/geoserver/test/FeatureChainingWfsTest.java:[1523,51] error: cannot find symbol
[INFO] 31 errors 

I can successfully build this module locally, so not sure if there is some kind of artifacts problems.