Log Message:
Update 0.68 to 0.72
-------------------
0.72    2015-02-08
        - fix update_ref in gitdata (Mike Schilli)

0.71    2015-01-20
        - When a query fails, include any additional error messages returned by \ 
the API,
          in the croak message. (Neil Bowers)
        - Make User-Agent header conform to RFCs (Zak Wilcox)

0.70    2014-10-08
        add per_page in GET no matter it supports or not

0.69    2014-09-11
        pass ua as the args so we can set up proxies for all