[DOC] org.apache.el.parser.COERCE_TO_ZERO in EAP 7

EAP 7 moved away from the EL impl provided by JBoss Web to using one derived from org.glassfish:javax.el.

7.3 beta
Table A.2. Map EL System Properties
https://access.redhat.com/documentation/en-us/red_hat_jboss_enterprise_application_platform/7.3.beta/html/migration_guide/migration_reference_material#migrate_map_el_system_properties

7.2
Table A.2. Map EL System Properties
https://access.redhat.com/documentation/en-us/red_hat_jboss_enterprise_application_platform/7.2/html/migration_guide/migration_reference_material#migrate_map_el_system_properties