replace printStacktrace() with Log_OC

Signed-off-by: tobiasKaminsky <tobias@kaminsky.me>

src/main/java/com/owncloud/android/operations/UploadFileOperation.java

@@ -989,7 +989,7 @@ public class UploadFileOperation extends SyncOperation {
                     try {
                         move(temporalFile, expectedFile);
                     } catch (IOException e) {
-                        e.printStackTrace();
+                        Log_OC.e(TAG, e.getMessage());
                     }
                 }
                 mFile.setStoragePath(expectedFile.getAbsolutePath());

src/main/java/com/owncloud/android/utils/ConnectivityUtils.java

@@ -91,9 +91,9 @@ public class ConnectivityUtils {
             } catch (com.owncloud.android.lib.common.accounts.AccountUtils.AccountNotFoundException e) {
                 Log_OC.e(TAG, "Account not found", e);
             } catch (OperationCanceledException e) {
-                e.printStackTrace();
+                Log_OC.e(TAG, e.getMessage());
             } catch (AuthenticatorException e) {
-                e.printStackTrace();
+                Log_OC.e(TAG, e.getMessage());
             }
         }
 

src/main/java/com/owncloud/android/utils/EncryptionUtils.java

@@ -626,7 +626,7 @@ public class EncryptionUtils {
 
             return keyGenerator.generateKey().getEncoded();
         } catch (NoSuchAlgorithmException e) {
-            e.printStackTrace();
+            Log_OC.e(TAG, e.getMessage());
         }
 
         return null;