allow placeholder for sharing project to be changed

services/web/app/views/project/editor/share.jade

@@ -49,7 +49,7 @@ script(type='text/ng-template', id='shareProjectModalTemplate')
 					.form-group
 						tags-input(
 							template="shareTagTemplate"
-							placeholder="joe@example.com, sue@example.com, ..."
+							placeholder="#{settings.customisation.shareProjectPlaceholder || 'joe@example.com, sue@example.com, ...'}"
 							ng-model="inputs.contacts"
 							focus-on="open"
 							display-property="display"

services/web/config/settings.defaults.coffee

@@ -339,7 +339,9 @@ module.exports = settings =
 				url: "/logout"
 			}]
 		}]
-	
+
+	customisation: {}
+
 #	templates: [{
 #		name : "cv_or_resume",
 #		url : "/templates/cv"