make client_max_body_size configurable
Merge remote-tracking branch 'upstream/master'
make proxy_buffers configurable
added proxy_buffer_size with default value of 8k
Merge pull request #1 from OmarzT/configurable_parms

added proxy_buffer_size with default value of 8k
Merge pull request #139 from OmarzT/master

make proxy_buffers, proxy_buffer_size, client_max_body_size configurable