Haf

- fix some issues
- add some features

- fix 168

- support case reuse by other case

> example of reuse case: using 1.1.test1.response.body.data.name

1, using <begin> <end> to make haf find the tag
json
<begin>{'type':'int','case':'1.1.test1','property':{'1':'api_response','2':'body','3':'data','4':'name'}}<end>

2, type is the target type, case is the target case, property ordered by the number 1,2,3,4...., haf would find the target by the number
3, add dependent_var and dependent to the case
- add GET/POST/PUT to the console output of http-request

- fix bugs:
1, filter_case -fc error
2, fix http_request by reqeusts's session
- support sql server tool
- add using_data to get method
- change default log level to debug, on linux system always run failed of no debug output

- fix one bug of urllib.urlopen 's request
- when using get method:

1, if u want to using data as url, just not using `using_data` in kwargs

python
Util.http_request(request)


2, if u want to using data as get's body, using `using_data` is nessary in `http_request`

python
Util.http_request(request, using_data=True)

- fix pyrunner bugs: must update from 2.8.5/2.8.6 160
- update readme
- add debug output of lock