doc: update to Lua 5.4

Author: daurnimator

README.md

@@ -7,7 +7,7 @@
   - Functionality for both client and server
   - Cookie Management
   - Websockets
-  - Compatible with Lua 5.1, 5.2, 5.3 and [LuaJIT](http://luajit.org/)
+  - Compatible with Lua 5.1, 5.2, 5.3, 5.4 and [LuaJIT](http://luajit.org/)
 
 
 ## Documentation

doc/interfaces/stream.md

@@ -61,17 +61,17 @@ Reads `n` characters (bytes) of body from the stream and return them as a string
 
 ### `stream:get_body_until(pattern, plain, include_pattern, timeout)` <!-- --> {#stream:get_body_until}
 
-Reads in body data from the stream until the [lua pattern](http://www.lua.org/manual/5.3/manual.html#6.4.1) `pattern` is found and returns the data as a string. `plain` is a boolean that indicates that pattern matching facilities should be turned off so that function does a plain "find substring" operation, with no characters in pattern being considered magic. `include_patterns` specifies if the pattern itself should be included in the returned string. On error, returns `nil`, an error message and an error number.
+Reads in body data from the stream until the [lua pattern](http://www.lua.org/manual/5.4/manual.html#6.4.1) `pattern` is found and returns the data as a string. `plain` is a boolean that indicates that pattern matching facilities should be turned off so that function does a plain "find substring" operation, with no characters in pattern being considered magic. `include_patterns` specifies if the pattern itself should be included in the returned string. On error, returns `nil`, an error message and an error number.
 
 
 ### `stream:save_body_to_file(file, timeout)` <!-- --> {#stream:save_body_to_file}
 
-Reads the body from the stream and saves it to the [lua file handle](http://www.lua.org/manual/5.3/manual.html#6.8) `file`. On error, returns `nil`, an error message and an error number.
+Reads the body from the stream and saves it to the [lua file handle](http://www.lua.org/manual/5.4/manual.html#6.8) `file`. On error, returns `nil`, an error message and an error number.
 
 
 ### `stream:get_body_as_file(timeout)` <!-- --> {#stream:get_body_as_file}
 
-Reads the body from the stream into a temporary file and returns a [lua file handle](http://www.lua.org/manual/5.3/manual.html#6.8). On error, returns `nil`, an error message and an error number.
+Reads the body from the stream into a temporary file and returns a [lua file handle](http://www.lua.org/manual/5.4/manual.html#6.8). On error, returns `nil`, an error message and an error number.
 
 
 ### `stream:unget(str)` <!-- --> {#stream:unget}

doc/introduction.md

@@ -1,6 +1,6 @@
 # Introduction
 
-lua-http is an performant, capable HTTP and WebSocket library for Lua 5.1, 5.2, 5.3 and LuaJIT. Some of the features of the library include:
+lua-http is an performant, capable HTTP and WebSocket library for Lua 5.1, 5.2, 5.3, 5.4 and LuaJIT. Some of the features of the library include:
 
   - Support for HTTP versions 1, 1.1 and 2 as specified by [RFC 7230](https://tools.ietf.org/html/rfc7230) and [RFC 7540](https://tools.ietf.org/html/rfc7540)
   - Provides both client and server APIs

doc/modules/http.cookie.md

@@ -52,7 +52,7 @@ Defaults to the [latest](https://rockdaboot.github.io/libpsl/libpsl-Public-Suffi
 
 A function used by the `store` to get the current time for expiries and such.
 
-Defaults to a function based on [`os.time`](https://www.lua.org/manual/5.3/manual.html#pdf-os.time).
+Defaults to a function based on [`os.time`](https://www.lua.org/manual/5.4/manual.html#pdf-os.time).
 
 
 ### `store.max_cookie_length` <!-- --> {#http.cookie.store.max_cookie_length}

doc/modules/http.proxies.md

@@ -7,7 +7,7 @@ Returns an empty 'proxies' object
 
 ### `proxies:update(getenv)` <!-- --> {#http.proxies:update}
 
-`getenv` defaults to [`os.getenv`](http://www.lua.org/manual/5.3/manual.html#pdf-os.getenv)
+`getenv` defaults to [`os.getenv`](http://www.lua.org/manual/5.4/manual.html#pdf-os.getenv)
 
 Reads environmental variables that are used to control if requests go through a proxy.
 

doc/modules/http.request.md

@@ -161,7 +161,7 @@ Allows setting a request body. `body` may be a string, function or lua file obje
 
   - If `body` is a string it will be sent as given.
   - If `body` is a function, it will be called repeatedly like an iterator. It should return chunks of the request body as a string or `nil` if done.
-  - If `body` is a lua file object, it will be [`:seek`'d](http://www.lua.org/manual/5.3/manual.html#pdf-file:seek) to the start, then sent as a body. Any errors encountered during file operations **will be thrown**.
+  - If `body` is a lua file object, it will be [`:seek`'d](http://www.lua.org/manual/5.4/manual.html#pdf-file:seek) to the start, then sent as a body. Any errors encountered during file operations **will be thrown**.
 
 
 ### `request:go(timeout)` <!-- --> {#http.request:timeout}