Revert "Added job parameters, changed settings to be per-project instead of per-job"

This reverts commit cdef0d38828245a4a4282c58bbebdbe0e11f6290.

Conflicts:
	src/main/java/com/hbakkum/rundeck/plugins/hipchat/HipChatNotificationPlugin.java
	src/main/resources/templates/hipchat-message.ftl