Fix json keyorder bug

[Leonid-Ganin]

Fix json keyorder bug #481

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[clang-clang-clang]

This fix to be determine.

We have 2 copies about dkjson as follows:

1. platform/resources/dkjson.lua
2. modules/json/external/dkjson.lua

According to build files listed below, we should fix on former one:

1. platform/android/ndk/CMakeLists.txt
2. platform/emscripten/gmake/lua2cpp.make
3. platform/iphone/libcorona.xcodeproj/project.pbxproj
4. platform/mac/CoronaBuilder.xcodeproj/project.pbxproj
5. platform/mac/ratatouille.xcodeproj/project.pbxproj
6. platform/tvos/ratatouille.xcodeproj/project.pbxproj
7. platform/windows/Corona.Rtt.Library/Corona.Rtt.Library.Win32.vcxproj
8. platform/windows/CoronaBuilder/CoronaBuilder.vcxproj
9. subrepos/enterprise/build.sh

Thanks.