新文件：    src/languages/vim.js
	修改：      src/test.html
	修改：      AUTHORS.en.txt
	修改：      docs/css-classes-reference.rst
	修改：      src/languages/vim.js
1. remove some keywords that's used as operators more often.
2. fixed lexeme
Add listLanguages() API methods and fix export.html
	修改：      src/languages/vim.js
added protocol buffer language support
added booleans to protobuf language definition
changed heading in test.html from "Protobuf" to "Protocol Buffers"
fixed language contributor checklist to reflect up-to-date language def format
Merge pull request #375 from dtao/fix-to-language-contributor-checklist

fixed language contributor checklist to reflect up-to-date language def format
changed class for protobuf enum values from "title" to "constant"
added self to authors file
moved protobuf boolean values into keywords section
Adding Dan Tao to AUTHORS.ru.txt
Highlight the beginning keyword and the title in the class definition in Protobuf.
Merge branch 'master' of github.com:isagalaev/highlight.js
Few ReST fixes in docs
Update sql.js

keywords: limit, ifnull
Merge pull request #378 from neor-ru/patch-1

Update sql.js
fix language class detection