As Adrian Tritschler reported, Flickr returns Lat/Long
with inconsistent quoting: 0 / "-32.2".
Also ints ("total", for example) can come in quoted ("6236") and
unquoted (6236) form, too.
This commit utilizes an int and a float32 with specialized Unmarshaler.
Change-Id: Ic559059272ba457860bf56a8671d5abd430eb404
Tamás Gulácsi