A bit of improvements for items data and character name

1. added item data and character name to item notes
2. item data parsing wrapped so gives messagebox instead of null pointer in case of currupted data
3. items import window cleaned up a bit

![image](https://cloud.githubusercontent.com/assets/1394349/4392189/013ed9d8-440c-11e4-8e92-4471623f8da7.png)
![image](https://cloud.githubusercontent.com/assets/1394349/4392202/16f35a42-440c-11e4-886f-c43f41049564.png)