FIX sign jar with jdk7

modules/content_management/dist/lib/commons-logging-1.2.jar

modules/content_management/dist/lib/httpclient-4.5.2.jar

...es/content_management/dist/lib/httpclient-cache-4.5.2.jar

modules/content_management/dist/lib/httpclient-win-4.5.2.jar

modules/content_management/dist/lib/httpcore-4.4.4.jar

modules/content_management/dist/lib/plugin.jar

modules/content_management/dist/maarchCM.jar