Rule: no-underscore-dangle for func/var declarations
Update eslint.json with no-underscore-dangle rule
Use proper node declarations and __proto__ exception
Merge branch 'master' of https://github.com/nzakas/eslint into no-underscore-dangle

Conflicts:
	conf/eslint.json
Merge branch 'master' of https://github.com/nzakas/eslint into no-underscore-dangle

Conflicts:
	conf/eslint.json
Check for use of underscore library as an exception for var declarations
Merge pull request #176 from mduvall/no-underscore-dangle

Rule: no-underscore-dangle for func/var declarations (fixes #175)