Added missing bracket for del2008local bib entry

The error said:

```
pandoc-citeproc: "stdin" (line 125, column 2):
```

This means that there was a problem in your .bib file for the citation that began on line 125. 

In this entry the author field was:

```
author={del Granado, Javier Arze and Martinez-Vazquez, Jorge and Simatupang, R Renata,
```

This is missing a closing curly braces `}` at the end. I added it and it should work fine now.