Reworked FBscrape to generate posts.json directly from Graph API json. Grid displays better information

Hey I have picked up your CFWC-search project to play around with, and have made some changes (hopefully improvements) to the way the data is retrieved and parsed to posts.json.

Also made changes to JS scripts in grid.html, so that the new format is passed to slickgrid correctly. Also changed how it's displayed.

I think the only truly fundamental change is that the only data I'm gathering is the OP - not comments.

Umm.. Check it out. This is my first time doing any github stuff so not too sure what I'm doing but hopefully it will  work out.

Attached image of resulting grid:
![screenshot004](https://cloud.githubusercontent.com/assets/2009756/4434422/3a27f538-4716-11e4-9313-60a34013b35d.png)