maven.compiler.source and maven.compiler.target values inconsistent across projects

Update maven properties maven.compiler.target and maven.compiler.source from version 1.7 to 1.8. Causing compiler issues on IDEs.

pom.xml files have been updated to maven.compiler.source and maven.compiler.target value 1.8 instead of 1.7. There are some projects with value 1.7:

modified: adapters/oidc/adapter-core/pom.xml
modified: adapters/oidc/as7-eap6/pom.xml
modified: adapters/oidc/fuse7/camel-undertow/pom.xml
modified: adapters/oidc/fuse7/undertow/pom.xml
modified: adapters/oidc/jetty/jetty-core/pom.xml
modified: adapters/oidc/jetty/jetty9.2/pom.xml
modified: adapters/oidc/osgi-adapter/pom.xml
modified: adapters/oidc/servlet-filter/pom.xml
modified: adapters/oidc/spring-boot/pom.xml
modified: adapters/oidc/tomcat/tomcat-core/pom.xml
modified: adapters/oidc/tomcat/tomcat/pom.xml
modified: adapters/oidc/tomcat/tomcat7/pom.xml
modified: adapters/oidc/undertow/pom.xml
modified: adapters/saml/as7-eap6/pom.xml
modified: adapters/saml/as7-eap6/subsystem/pom.xml
modified: adapters/saml/core-public/pom.xml
modified: adapters/saml/core/pom.xml
modified: adapters/saml/jetty/jetty-core/pom.xml
modified: adapters/saml/jetty/jetty9.2/pom.xml
modified: adapters/saml/servlet-filter/pom.xml
modified: adapters/saml/tomcat/tomcat-core/pom.xml
modified: adapters/saml/tomcat/tomcat/pom.xml
modified: adapters/saml/tomcat/tomcat7/pom.xml
modified: adapters/spi/adapter-spi/pom.xml
modified: adapters/spi/jboss-adapter-core/pom.xml
modified: adapters/spi/jetty-adapter-spi/pom.xml
modified: adapters/spi/servlet-adapter-spi/pom.xml
modified: adapters/spi/tomcat-adapter-spi/pom.xml
modified: adapters/spi/undertow-adapter-spi/pom.xml
modified: authz/client/pom.xml
modified: common/pom.xml
modified: core/pom.xml
modified: distribution/adapters/osgi/jaas/pom.xml
modified: saml-core-api/pom.xml
modified: saml-core/pom.xml
modified: testsuite/integration-arquillian/test-apps/pom.xml