Add lint-staged prettier (#1183)

* Configure lint-staged and prettier for whole project

* prettier baseline run

* ignore and revert prettier changes to PluralResolver

* make eslint play nice with prettier

* bump codeclimate to allow for same exact code previous that checks different with prettier

.codeclimate.yml

@@ -25,3 +25,16 @@ exclude_paths:
   - 'rollup.config.js'
   - 'karma.conf.js'
   - 'karma.backward.conf.js'
+checks:
+  file-lines:
+    config:
+      threshold: 300
+  method-lines:
+    config:
+      threshold: 70
+  complex-logic:
+    config:
+      threshold: 5
+  nested-control-flow:
+    config:
+      threshold: 5

.eslintrc

@@ -1,5 +1,7 @@
 parser: babel-eslint
-extends: airbnb
+extends: 
+  - airbnb
+  - prettier
 
 rules:
   max-len: [0, 100]

.prettierignore

@@ -0,0 +1,3 @@
+i18next.js
+i18next.min.js
+src/PluralResolver.js

README.md

@@ -12,7 +12,6 @@ i18next is a very popular internationalization framework for browser or any othe
 
 ![ecosystem](https://blobscdn.gitbook.com/v0/b/gitbook-28427.appspot.com/o/assets%2F-L9iS6Wm2hynS5H9Gj7j%2F-L9iS7LlT2W7wFtJH-2n%2F-L9iSBP9U65-bHJBRSDv%2Fi18next-ecosystem.jpg?generation=1523345318122913&alt=media)
 
-
 i18next provides:
 
 - Flexible connection to [backend](https://www.i18next.com/plugins-and-utils.html#backends) (loading translations via xhr, ...)
@@ -24,17 +23,15 @@ i18next provides:
 - Extensibility: eg. [sprintf](https://www.i18next.com/plugins-and-utils.html#post-processors)
 - ...
 
-
 For more information visit the website:
 
 - [Getting started](https://www.i18next.com/getting-started.html)
 - [Translation Functionality](https://www.i18next.com/essentials.html)
 - [API](https://www.i18next.com/api.html)
 
-
 Our focus is providing the core to building a booming ecosystem. Independent of the building blocks you choose, be it react, angular or even good old jquery proper translation capabilities are just [one step away](https://www.i18next.com/supported-frameworks.html).
 
---------------
+---
 
 <h3 align="center">Gold Sponsors</h3>
 
@@ -44,7 +41,8 @@ Our focus is providing the core to building a booming ecosystem. Independent of
   </a>
 </p>
 
---------------
+---
+
 **NEWS: localization as a service - locize.com**
 
 Having done a big rewrite of i18next in spring we are proud to announce the next big step to get your webproject translated with less effort. We just released [locize](http://locize.com/?utm_source=i18next_readme&utm_medium=github) a translation management system built around the i18next ecosystem.
@@ -53,4 +51,4 @@ Having done a big rewrite of i18next in spring we are proud to announce the next
 
 With using [locize](http://locize.com/?utm_source=i18next_readme&utm_medium=github) you directly support the future of i18next.
 
---------------
+---