Add support for Lua 5.2 and cjson.new

Update all Lua scripts to use new module init style everywhere:
	local json = require "cjson"

Lua CJSON does not register a global table under Lua 5.2. The global
table can be disabled under Lua 5.1 with DISABLE_CJSON_GLOBAL.

Other changes:
- Store CJSON configuration as an upvalue for each function.
- Add "cjson.new" function to create another module table with a
  separate configuration.
- Add _NAME and _VERSION variables.

1 files changed, 3 insertions, 3 deletions

diff --git a/tests/common.lua b/tests/common.lua
index f3dc6f7..7472a10 100644
--- a/tests/common.lua
+++ b/tests/common.lua
@@ -1,4 +1,4 @@
-require "cjson"
+local json = require "cjson"
 
 -- Misc routines to assist with CJSON testing
 --
@@ -77,8 +77,8 @@ function serialise_value(value, indent, depth)
     if indent == nil then indent = "" end
     if depth == nil then depth = 0 end
 
-    if value == cjson.null then
-        return "cjson.null"
+    if value == json.null then
+        return "json.null"
     elseif type(value) == "string" then
         return string.format("%q", value)
     elseif type(value) == "nil" or type(value) == "number" or