tool: modified eslint rule for line-breaks

Recently linebreak-style rule was added in jslint which expects
linebreaks to be unix style i.e. `LF` by default. However windows
has linebreak `CRLF` (`git config auto.crlf=true`) causing this rule
to fail for all `*.js` files present in repo. I have disabled the rule
for now and opened nodejs/node#6912 to get the right rule
for windows user.

PR-URL: #73
Reviewed-By: Jianchun Xu <Jianchun.Xu@microsoft.com>

.eslintrc

@@ -60,7 +60,7 @@ rules:
   indent: [2, 2, {SwitchCase: 1}]
   key-spacing: [2, {mode: "minimum"}]
   keyword-spacing: 2
-  linebreak-style: [2, "unix"]
+  linebreak-style: [1, "unix"]
   max-len: [2, 80, 2]
   new-parens: 2
   no-mixed-spaces-and-tabs: 2