Made "Software Update" and "CuraEngine" translateable

Also fixed a typo in a notification.
(cherry picked from commit 430e47d)

src/octoprint/plugins/cura/__init__.py

@@ -35,6 +35,14 @@ class CuraPlugin(octoprint.plugin.SlicerPlugin,
 		self._cancelled_jobs = []
 		self._job_mutex = threading.Lock()
 
+	##~~ TemplatePlugin API
+
+	def get_template_configs(self):
+		from flask.ext.babel import gettext
+		return [
+			dict(type="settings", name=gettext("CuraEngine"))
+		]
+
 	##~~ StartupPlugin API
 
 	def on_startup(self, host, port):

src/octoprint/plugins/softwareupdate/__init__.py

@@ -310,8 +310,9 @@ class SoftwareUpdatePlugin(octoprint.plugin.BlueprintPlugin,
 	##~~ TemplatePlugin API
 
 	def get_template_configs(self):
+		from flask.ext.babel import gettext
 		return [
-			dict(type="settings", name="Software Update")
+			dict(type="settings", name=gettext("Software Update"))
 		]
 
 	#~~ Updater

src/octoprint/plugins/softwareupdate/static/js/softwareupdate.js

@@ -142,7 +142,7 @@ $(function() {
                             click: function() {
                                 self._markNotificationAsSeen(data.information);
                                 self._showPopup({
-                                    text: gettext("You can make this message display again via \"Settings\" > \"SoftwareUpdate\" > \"Check for update now\"")
+                                    text: gettext("You can make this message display again via \"Settings\" > \"Software Update\" > \"Check for update now\"")
                                 });
                             }
                         }, {