Modify wrong codes.
Merge pull request #3812 from nutty898/develop_nutty_modify_wrong_codes

[ci skip]Modify wrong codes.
various small fixes
Adds CODING_STYLE.md and RELEASE_NOTES files

The files are also added in the Xcode project
Adds RELEASE_NOTES and CODING_SYTLE.md into Xcode
Removes unneeded log

This log is already part of `CCConfiguration`
Updates CHANGELOG with the new misc changes
Merge pull request #3827 from ricardoquesada/adds_missing_files

Adds missing files
removes unneeded comments from coding_style
Merge pull request #3828 from ricardoquesada/develop

removes unneeded comments from coding_style
Merge pull request #3826 from michaelcontento/emscripten-fixes

Various small Emscripten fixes