Update existing person's information
| Parameter | Necessity | Type | Description |
|---|---|---|---|
| pid | required | int | person id |
| information_list | required | list | the new information list that need to be added |
| update_date | not required | string | date when updating the information |
| source | required | string | source of the information |
Updated person xml files.
XML DOM Tutorial http://www.w3schools.com/dom/