Modify editing of human surveys

Previously, the participant's name could not be updated on wwwadmin (it would
fail silently). Had to make a special case for this field.
Add query: obtain susccessfully processed studies
Change the way getAGBarcodeDetails returns data

Now returns a dict keyed by column header rather than an ordered tuple
Modify how ag_edit_barcode gets barcode details

Expects dict keyed by column header rather than ordered tuple.
Also, add warning about changing participant name.
Updating a participant's name now updates samples

If the participant's name changes, then the samples associated with the old
name are now re-associated with the new name.
Checking in new menu styling and organization
Merge branch 'master' of git://github.com/qiime/qiime_web_app into issue_570
Uncommenting marker line
Fix typo
Merge branch 'master' of git://github.com/qiime/qiime_web_app into issue_570
Updated international shipping link styling and open in new tab things
Merge pull request #525 from adamrp/i524

Modify editing of human surveys
Merge pull request #530 from adamrp/successfully_processed_query

Add query: obtain susccessfully processed studies
Minor line-continuation fix
Merge pull request #581 from adamrp/fix_study_summary

Minor line-continuation fix
Merge pull request #575 from meganap/issue_570

Menu restyling and organization
Merge branch 'master' of git://github.com/qiime/qiime_web_app