1. Replace chained withFields to use a single WithFields
2. check for debug log enabled before invoking debug logs
3. store request logger in the context to minimize amount of instantiation calls.

adds client ip from XFF by depth

Make header size configurable

Add debbugging and fixes which may cause body to be read improperly

Fix expected behaviouor for merging allowed types

Merge branch 'master' into test/apply-policies-restricted-types

Fix expected behaviouor for merging allowed types

Update stream.go

Update stream.go