Add config parameters

Added:
* client_body_buffer_size
* client_header_buffer_size
Respect 80 char line limit

Added new line for nginx.worker_processes to respect 80 character
rule.
Add proxy_cache_path to default config possibility

Added proxy_cache path and a bit of white space grouping for the
poor BOFH that might have to actually read the config file.
Fix indenting