Issue 2374 - Implemented Tweaks section in options page

locale/en-US/options.json

 {
   "options_page_title": {
     "description": "Options page title",
     "message": "Adblock Plus Options"
   },
   "options_page_header_1": {
     "description": "Page title in navigation sidebar",
     "message": "Options"
   },
   "options_page_header_2": {
@@ skipping 123 matching lines @@
   "options_button_cancel": {
     "description": "Cancel button label",
     "message": "cancel"
   },
   "options_tweaks_title": {
     "description": "Section title in Advanced tab",
     "message": "Tweaks"
   },
   "options_tweaks_blockElement": {
     "description": "Show block Element option in Advanced tab",
-    "message": "Show <a>Block Element</a> right-click menu item"
+    "message": "Show <strong>Block Element</strong> right-click menu item"
+  },
+  "options_tweaks_showNotifications": {
+    "description": "Notification opt-out option in Advanced tab",
+    "message": "Show useful <strong>notifications</strong>"
+  },
+  "options_tweaks_safariContentBlocker": {
+    "description": "Switch between classic and Safari's Content Blocking",
+    "message": "Use Safari's native <strong>Content Blocking</strong> (experimental)"
   },
   "options_filterList_title": {
     "description": "Section title in Advanced tab",
     "message": "Filter lists"
   },
   "options_tab_overview": {
     "description": "Tab name in Advanced tab",
     "message": "Overview"
   },
   "options_tab_ownList": {
@@ skipping 59 matching lines @@
   "options_filterList_own_list": {
     "description": "Name of custom subscription entry in filter list section in Advanced tab",
     "message": "Own filter list"
   },
   "options_filterList_edit_own_list": {
     "description": "Entry in filter list section in Advanced tab",
     "message": "edit your filter list"
   },
   "options_customFilters_title": {
     "description": "Custom filters option name in Advanced tab",
-    "message": "Blocking rules"
+    "message": "Filter rules"
   },
   "options_customFilters_textbox_placeholder": {
     "description": "Adding custom filter textbox placeholder text in Advanced tab",
-    "message": "add your blocking rule here"
+    "message": "add your filter rule here"
   },
   "options_customFilter_edit": {
     "description": "Label for editing custom filter in Advanced tab",
     "message": "edit rules"
   },
   "options_customFilter_list": {
     "description": "Label for editing custom filter in Advanced tab",
     "message": "list view"
   },
   "options_customFilter_save": {
@@ skipping 51 matching lines @@
   "options_dialog_custom_import": {
     "description": "Button in add custom subscription modal dialog",
     "message": "import filter list with this URL"
   },
   "options_dialog_edit_own_list": {
     "description": "Edit own filter list section name in custom subscription modal dialog",
     "message": "edit own filter list"
   },
   "options_dialog_create_own_list": {
     "description": "Button in custom subscription modal dialog",
-    "message": "create own blocking rules"
+    "message": "create own filter rules"
   },
    "options_dialog_language_title": {
     "description": "Button in gerenal tab",
     "message": "Add other website language"
   },
   "options_dialog_language_find": {
     "description": "Placeholder text in add language modal dialog",
     "message": "Find language"
   },
   "options_dialog_language_added": {
@@ skipping 66 matching lines @@
   },
   "options_language_ro": {
     "description": "Language name shown in add language modal dialog",
     "message": "Romanian"
   },
   "options_language_ru_uk": {
     "description": "Language name shown in add language modal dialog",
     "message": "Russian and Ukrainian"
   }
 }