update scripts

Author: codeyu

Scripts/crawler/README.md

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+Fork form https://github.com/bonfy/leetcode
+
+---
+
+# leetcode_generate Usage
+
+![](https://github.com/bonfy/leetcode/blob/master/demo/leetcode.gif)
+
+## Preparements:
+
+Use `selenium` and `PhantomJS`
+
+> I think it's not the best way. But I can't find way leetcode encrypt the csrftoken.
+> If anyone find the encrypt algoristhm, please pull request to me. And I can change the login to requests
+
+Install `PhantomJS` please follow [PhantomJS official website](http://phantomjs.org/download.html)
+
+Mac Users can install `PhantomJS` by `Homebrew`
+
+``` cmd
+$ brew install phantomjs
+```
+
+Install essential packages: `requests`, `pyquery`,`selenium`
+```cmd
+$ pyvenv venv   # create virtual environment
+$ source venv/bin/activate
+$ pip3 install -r req.txt
+```
+
+## Config:
+
+Edit your own username, password, language and repo in the **config.cfg** file
+
+```
+[leetcode]
+
+username = username
+password = password
+language = python
+repo = https://github.com/bonfy/leetcode
+```
+
+## Run
+
+### Fully Download
+```cmd
+python3 leetcode_generate.py
+```
+Usually you can always run fully download
+
+### Download by id
+```
+python3 leetcode_generate.py 1
+python3 leetcode_generate.py 1 10 100
+```
+You can only download the solution you want.
+Just add the id arguments behind (seperate by space)
+
+
+## Attention
+Python 3 have tested
+
+Python 2 maybe
+
+## Changelog
+
+- 2016-10-09 Download codes from Leetcode and generate Readme
+- 2016-11-25 Add multi language support
+- 2017-01-02 Fix the bug cause by Leetcode change website: `PHPSESSID` change to `LEETCODE_SESSION`
+- 2017-04-22 Fix the bug cause by Leetcode change website: csrftoken encrypt, submissions change from HTML to JSON

Scripts/crawler/config.cfg

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+[leetcode]
+
+username = username
+password = password
+language = python,javascript,csharp
+repo = https://github.com/codeyu/leetcode