correct example in enum class docs
Merge pull request #244 from ptomulik/fix/enum-class-doc

correct example in enum class docs
Syntax fix using %feature in documentation
Cosmetic comment changes

Note: copyrights are in the COPYRIGHT file
The kwargs feature no longer turns on compactdefaultargs for languages that don't support kwargs.

Affects all languages except Python and Ruby.

Closes #242
Spelling fix
Minor C++11 doc change