Added mock list of particpants to menu.psp

used test data for list of participants
Add data_access methods to menu.psp (side bar)

Now pulls participants from ag_human_survey table and lists them
in the sidebar.
Merge branch 'menu_psp' of git://github.com/adamrp/qiime_web_app into menu_psp

Conflicts:
	www/americangut/menu.psp
Merge pull request #164 from adamrp/menu_psp

menu.psp modifications