start to implement using LittleProxy
progress on LittleProxy impl

need to be able to handle chunked requests & responses
working implementation with chunked response handling
fix resolution of request URI for CONNECT requests
better logging in filters
update gradle wrapper
predicated filter
SmokeSpec now just uses URLConnection as it's easier to handle response as text
Rough implementation using LittleProxy – a lot of tidying up needed & some things not working

- redirects get recorded
- gripped data is recorded unzipped (correct) but re-zipped (i.e. double zipped) in response
remove tape file that shouldn't have been committed
removed some redundant code