Fix the build

Fixes #2787

res/values/strings.xml

@@ -111,7 +111,7 @@
     <string name="ConversationActivity_transport_insecure_mms">Insecure MMS</string>
     <string name="ConversationActivity_transport_textsecure">TextSecure</string>
     <string name="ConversationActivity_get_with_it">Get with it: %s</string>
-    <string name="ConversationActivity_lets_use_this_to_chat">Let's use this to chat: %s</string>
+    <string name="ConversationActivity_lets_use_this_to_chat">Let\'s use this to chat: %s</string>
     <string name="ConversationActivity_error_leaving_group">Error leaving group...</string>
 
     <!-- ConversationFragment -->

src/org/thoughtcrime/securesms/PassphraseChangeActivity.java

@@ -98,7 +98,7 @@ public class PassphraseChangeActivity extends PassphraseActivity {
         this.repeatPassphrase.setText("");
       } else if (passphrase.equals("")) {
         Toast.makeText(getApplicationContext(),
-                       R.string.PassphraseChangeActivity_need_new_passphrase_exclamation,
+                       R.string.PassphraseChangeActivity_enter_new_passphrase_exclamation,
                        Toast.LENGTH_SHORT).show();
       } else {
         MasterSecret masterSecret = MasterSecretUtil.changeMasterSecretPassphrase(this, original, passphrase);