Improved style of attribute form

app/imports/api/creature/properties/Attributes.js

@@ -57,11 +57,11 @@ let AttributeSchema = schema({
 		type: Number,
 		optional: true,
 	},
-	// The damage done to the attribute, always negative
-  adjustment: {
+	// The damage done to the attribute, always positive
+  damage: {
     type: SimpleSchema.Integer,
     optional: true,
-		max: 0,
+		min: 0,
   },
   // Can the value be decimal?
   decimal: {

app/imports/api/library/LibraryNodes.js

@@ -5,7 +5,6 @@ import librarySchemas from '/imports/api/library/librarySchemas.js';
 import Libraries from '/imports/api/library/Libraries.js';
 import { assertEditPermission } from '/imports/api/sharing/sharingPermissions.js';
 import getModifierFields from '/imports/api/getModifierFields.js';
-import simpleSchemaMixin from '/imports/api/creature/mixins/simpleSchemaMixin.js';
 
 let LibraryNodes = new Mongo.Collection('libraryNodes');