Allow control over http overrides.
Allow control over http overrides.

Based on feedback:

https://twitter.com/hirojin/status/549653608233709568
https://twitter.com/duckinator/status/549107236849872896

jbotelho2-bb/nokogumbo,jbotelho2-bb/nokogumbo,staugaard/nokogumbo,rubys/nokogumbo,rubys/nokogumbo,grosser/nokogumbo,swills/nokogumbo,grosser/nokogumbo,rubys/nokogumbo,rubys/nokogumbo,swills/nokogumbo,staugaard/nokogumbo