add codespell, fix typos (#2490)

* add script to call codespell utility

* fix typos found by scripts/codespell.sh

src/org/thoughtcrime/securesms/ConversationActivity.java

@@ -612,7 +612,7 @@ public class ConversationActivity extends PassphraseRequiredActionBarActivity
       if (isSharing(this)) {
         // we're allowing only 1 try to share, going back to the conversation list will
         // close the conversation list in activtyForResult() as well, so that the user
-        // comes back to the extenal app's share menu
+        // comes back to the external app's share menu
         setResult(RESULT_OK);
       }
       finish();

src/org/thoughtcrime/securesms/connect/KeepAliveService.java

@@ -54,7 +54,7 @@ public class KeepAliveService extends Service {
         // set self as foreground
         try {
             stopForeground(true);
-            startForeground(NotificationCenter.ID_PERMANTENT, createNotification());
+            startForeground(NotificationCenter.ID_PERMANENT, createNotification());
         }
         catch (Exception e) {
             e.printStackTrace();

src/org/thoughtcrime/securesms/geolocation/LocationBackgroundService.java

@@ -69,7 +69,7 @@ public class LocationBackgroundService extends Service {
         try {
             locationManager.removeUpdates(locationListener);
         } catch (Exception ex) {
-            Log.i(TAG, "fail to remove location listners, ignore", ex);
+            Log.i(TAG, "fail to remove location listeners, ignore", ex);
         }
     }
 

src/org/thoughtcrime/securesms/imageeditor/renderers/MultiLineTextRenderer.java

@@ -23,7 +23,7 @@ import java.util.List;
 import static java.util.Collections.emptyList;
 
 /**
- * Renders multiple lines of {@link #text} in ths specified {@link #color}.
+ * Renders multiple lines of {@link #text} in the specified {@link #color}.
  * <p>
  * Scales down the text size of long lines to fit inside the {@link Bounds} width.
  */

src/org/thoughtcrime/securesms/map/DCMapFragment.java

@@ -192,7 +192,7 @@ public class DCMapFragment extends Fragment implements OnMapReadyCallback {
     }
 
     /**
-     * Called when the fragment is view hiearchy is being destroyed.
+     * Called when the fragment is view hierarchy is being destroyed.
      */
     @Override
     public void onDestroyView() {

src/org/thoughtcrime/securesms/mms/AttachmentManager.java

@@ -399,7 +399,7 @@ public class AttachmentManager {
     return result;
   }
 
-  // should be called when the attachement manager comes into view again.
+  // should be called when the attachment manager comes into view again.
   // if the attachment manager contains a webxdc, its summary is updated.
   public void onResume() {
     if (slide.isPresent()) {

src/org/thoughtcrime/securesms/notifications/NotificationCenter.java

@@ -149,7 +149,7 @@ public class NotificationCenter {
     // Notification IDs
     // --------------------------------------------------------------------------------------------
 
-    public static final int ID_PERMANTENT  = 1;
+    public static final int ID_PERMANENT   = 1;
     public static final int ID_MSG_SUMMARY = 2;
     public static final int ID_GENERIC     = 3;
     public static final int ID_MSG_OFFSET  = 0; // msgId is added - as msgId start at 10, there are no conflicts with lower numbers

src/org/thoughtcrime/securesms/preferences/NotificationsPreferenceFragment.java

@@ -112,7 +112,7 @@ public class NotificationsPreferenceFragment extends ListSummaryPreferenceFragme
     super.onResume();
     ((ApplicationPreferencesActivity) getActivity()).getSupportActionBar().setTitle(R.string.pref_notifications);
 
-    // upate ignoreBattery in onResume() to reflects changes done in the system settings
+    // update ignoreBattery in onResume() to reflects changes done in the system settings
     ignoreBattery.setChecked(isIgnoringBatteryOptimizations());
   }
 

src/org/thoughtcrime/securesms/video/recode/VideoRecoder.java

@@ -837,7 +837,7 @@ public class VideoRecoder {
         vei.resultHeight *= scale;
       }
 
-      // we know the most important things now, prepare the message to get a resposive ui
+      // we know the most important things now, prepare the message to get a responsive ui
       if (vei.originalRotationValue == 90 || vei.originalRotationValue == 270) {
         msg.setDimension(vei.resultHeight, vei.resultWidth);
       } else {
@@ -846,7 +846,7 @@ public class VideoRecoder {
       msg.setDuration((int) resultDurationMs);
       DcHelper.getContext(context).prepareMsg(chatId, msg);
 
-      // calulate bytes
+      // calculate bytes
       vei.estimatedBytes = VideoRecoder.calculateEstimatedSize((float) resultDurationMs / vei.originalDurationMs,
           vei.resultVideoBitrate, vei.originalDurationMs, vei.originalAudioBytes);