Add config for whitespace inside array-notation MemberExpression.

Adds whiteSpace.before.MemberExpressionClosing and
whiteSpace.after.MemberExpressionOpening to expression liks `obj[prop]`.
Regular dot-notation (`obj.prop`) is unchanged.
Allow var declarations without init on one line. Fixes #63

This adds lineBreak.before.VariableDeclarationWithoutInit, on by default.
When turned off, multi var declarations without init can go on one line,
like `var x, y, z;`.
Merge pull request #67 from jzaefferer/member-expression-ws

Add config for whitespace inside array-notation MemberExpression.
Merge remote branch 'jzaefferer/one-line-var-declaration'

* jzaefferer/one-line-var-declaration:
  Allow var declarations without init on one line. Fixes #63
fix EOF on one-line-var-declaration-config.json