Fixed some crashes in refresh of current folder

src/com/owncloud/android/operations/SynchronizeFolderOperation.java

@@ -206,9 +206,9 @@ public class SynchronizeFolderOperation extends RemoteOperation {
                 Log_OC.i(TAG, "Synchronized " + mAccount.name + remotePath + ": " + result.getLogMessage());
             } else {
                 if (result.isException()) {
-                    Log_OC.e(TAG, "Synchroned " + mAccount.name + remotePath  + ": " + result.getLogMessage(), result.getException());
+                    Log_OC.e(TAG, "Synchronized " + mAccount.name + remotePath  + ": " + result.getLogMessage(), result.getException());
                 } else {
-                    Log_OC.e(TAG, "Synchroned " + mAccount.name + remotePath + ": " + result.getLogMessage());
+                    Log_OC.e(TAG, "Synchronized " + mAccount.name + remotePath + ": " + result.getLogMessage());
                 }
             }
             

src/com/owncloud/android/ui/activity/FileDisplayActivity.java

@@ -870,8 +870,8 @@ OCFileListFragment.ContainerActivity, FileDetailFragment.ContainerActivity, OnNa
 
                 String synchFolderRemotePath = intent.getStringExtra(FileSyncService.SYNC_FOLDER_REMOTE_PATH); 
 
-                OCFile currentFile = mStorageManager.getFileById(getFile().getFileId());
-                OCFile currentDir = mStorageManager.getFileById(getCurrentDir().getFileId());
+                OCFile currentFile = (getFile() == null) ? null : mStorageManager.getFileById(getFile().getFileId());
+                OCFile currentDir = (getCurrentDir() == null) ? null : mStorageManager.getFileById(getCurrentDir().getFileId());
 
                 if (currentDir == null) {
                     // current folder was removed from the server