fixes #3332 : correct use of parametrized variables
Merge pull request #136 from ncharles/bug3332/dev/correct_use_of_parametrized_variables

fixes #3332 : correct use of parametrized variables
Merge branch 'branches/rudder/2.3' into branches/rudder/2.4

Conflicts:
	rudder-core/src/main/scala/com/normation/rudder/services/policies/ConfigurationRuleValService.scala
	rudder-core/src/main/scala/com/normation/rudder/services/policies/ParameterizedValueLookupService.scala