Update connection.rb

Follow the naming conventions of the RFC.

lib/protocol/http1/connection.rb

@@ -173,7 +173,7 @@ def read_line
 				read_line? or raise EOFError
 			end
 
-			def read_request_preface
+			def read_request_line
 				return unless line = read_line?
 
 				if match = line.match(REQUEST_LINE)
@@ -186,7 +186,7 @@ def read_request_preface
 			end
 
 			def read_request
-				method, path, version = read_request_preface
+				method, path, version = read_request_line
 				return unless method
 
 				headers = read_headers
@@ -200,7 +200,7 @@ def read_request
 				return headers.delete(HOST), method, path, version, headers, body
 			end
 
-			def read_response_preface
+			def read_status_line
 				version, status, reason = read_line.split(/\s+/, 3)
 
 				status = Integer(status)
@@ -209,7 +209,7 @@ def read_response_preface
 			end
 
 			def read_response(method)
-				version, status, reason = read_response_preface
+				version, status, reason = read_status_line
 
 				headers = read_headers