Remove platform-specific links from install flow

Mostly to satisfy the mac app store.

// FREEBIE

_locales/en/messages.json

@@ -446,8 +446,8 @@
         "message": "Get started"
     },
     "installSignalLink": {
-        "message": "First, install <a $a_params$>Signal</a> on your Android phone.<br /> We'll link your devices and keep your messages in sync.",
-        "description": "Prompt the user to install Signal on Android before linking",
+        "message": "First, install <a $a_params$>Signal</a> on your mobile phone. We'll link your devices and keep your messages in sync.",
+        "description": "Prompt the user to install Signal on their phone before linking",
         "placeholders": {
           "a_params": {
             "content": "$1",

js/views/install_view.js

@@ -10,14 +10,13 @@
         id: 'install',
         className: 'main',
         render_attributes: function() {
-            var playStoreHref = 'https://play.google.com/store/apps/details?id=org.thoughtcrime.securesms';
-            var appStoreHref = 'https://itunes.apple.com/us/app/signal-private-messenger/id874139669';
             var twitterHref = 'https://twitter.com/whispersystems';
+            var signalHref = 'https://signal.org/install';
             return {
                 installWelcome: i18n('installWelcome'),
                 installTagline: i18n('installTagline'),
                 installGetStartedButton: i18n('installGetStartedButton'),
-                installSignalLink: this.i18n_with_links('installSignalLinks', playStoreHref, appStoreHref),
+                installSignalLink: this.i18n_with_links('installSignalLink', signalHref),
                 installIHaveSignalButton: i18n('installGotIt'),
                 installFollowUs: this.i18n_with_links('installFollowUs', twitterHref),
                 installAndroidInstructions: i18n('installAndroidInstructions'),