add redirect for URL hard-coded into the default proguard config file, and...
add redirect for URL hard-coded into the default proguard config file, and update related redirects for the entire /guide/developing/ path. am: 3bd0cec4 am: 5e6dd44b
am: 632aa42e
Change-Id: I7fd04dc89752d9646803615988085b881e444e31