Cc12703-facebook-wda

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* freeze webdriveragent version
* change example tab to 4space
* support handle alert automaticly
* Sessions with arguments (23)
* change class\_name to className and text\_contains to textContains

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* Lukzeg change orientation functionality (21)
* add Element change lot of code
* add some beta apis
* follow format
* Change time\_out to timeout and add example usage in readme
* add alert.wait and Selector partial text
* support get current session id and bundle id

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* add pinch api
* update doc
* update accessible,pinch,keyboardDismiss,doubleTap,deactivateApp
* close 15
* update api sync with WDA (12)
* add healthcheck api
* fix broken swipe() API, due to wda specific endpoint complied with WD spec naming convention https://github.com/facebook/WebDriverAgent/commit/eeaa1a3bbc9559d41ff3779c73c6678c7715a3d0
* fix unicode convert to unicode error
* fix missing e args
* support python3

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* retry request when first failed
* Update \_\_init\_\_.py
* Update \_\_init\_\_.py
* update README.md file, adding example for element swipe api
* Add swipe support for wda element
* add comment and fix some code structure according to the pr
* expand ‘link text’ query of Selector class with ‘value’ or ‘label’ property, in case no ‘name’ property exists and only ‘value’ property valid
* fix the right api
* add send\_keys, but it not works actually
* sync to the latest wda
* status func add sessionId
* just add some comment
* add alert support, close 6

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* raise exceptions when connect went wrong
* add more about it
* add more ..
* change rect to bounds, add DEBUG mode
* remove extra code
* finish scroll part
* add scroll function
* limit max find element time into 90s
* merge code
* add bounds
* Add attribute
* Add getAttribut()
* Update \_\_init\_\_.py
* Fix find element when element's isvisible=NO
* add tap\_hold api
* enable swipe function
* Fix xpath定位
* Add xpath 定位
* Update README.md
* Update README.md
* Update README.md
* Update README.md
* Update README.md
* fix documentation, add some props
* do some fix
* update desc

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* wow, update again, this is the last today
* update document
* add the rest api
* fix json
* make doc looks beautiful
* add with operation
* fix travis setting
* update password
* add travis badge
* add travis
* add screenshot and selector
* add selector
* add tap and session close
* add session, and home function, wrap python requests functions
* update but not implement except status
* initial first release
* init project
* Initial commit