Fix exeptions in webapi

Author: ihorvansach

Model/AbstractManagement.php

@@ -32,7 +32,7 @@ public function create($data)
             $data = json_decode($data, true);
             $item = $this->_itemFactory->create();
             $item->setData($data)->save();
-        } catch (Exception $e) {
+        } catch (\Exception $e) {
             return false;
         }
 
@@ -57,7 +57,7 @@ public function update($id, $data)
             }
             $data = json_decode($data, true);
             $item->addData($data)->save();
-        } catch (Exception $e) {
+        } catch (\Exception $e) {
             return false;
         }
 
@@ -80,7 +80,7 @@ public function delete($id)
                 return true;
             }
             return false;
-        } catch (Exception $e) {
+        } catch (\Exception $e) {
             return false;
         }
     }