[wrt][XWALK-1811][XWALK-1944]Fix XWALK-1811/1944 update the tcs

Impacted TCs num(approved): New 0, update 3, deleted 1
Unit test platform: [tizen]
Unit test result summary: Pass 3, Fail  0, Blocked 0
[webapi] Import tests for Screen Orientation from blink

-Rewrite Blink screenorientation tests using testharness.js

Impacted TCs num(approved): New 3, Update 0, Delete 0
Unit test Platform: Tizen M0
Tizen test result summary: Pass 3, Fail 0, Blocked 0
[webapi][XWALK-1871] Replace picture URL in presentation

-Old pictrue URL now is invalid, so replace it.

Impacted TCs num(approved): New 0, Update 1, Delete 0
Unit test Platform: Android
Android test result summary: Pass 1, Fail 0, Blocked 0
[misc][XWALK-1847] Replace picture URL in Resource Timing

- Old picture URL is invalid now, so need to relpace.

Impacted TCs num(approved): New 0, Update 1, Delete 0
Unit test Platform: Tizen M0
Tizen test result summary: Pass 1, Fail 0, Blocked 0
[webdriver] Add a note of environment setup to generate APK package

- https://crosswalk-project.org/jira/browse/XWALK-1953
  describes detailed steps of how to build APK package
Merge pull request #334 from linshen/fix-xwalk-1691/1811

[wrt][XWALK-1811]Fix XWALK-1811 update the install command
Merge pull request #343 from zqzhang/zqzhang/webdriver-readme

[webdriver] Add a note of environment setup to generate APK package
Merge pull request #339 from xinliux/xinliux/webapi/screenorientation-blink

[webapi] Import tests for Screen Orientation from Blink
[wenapi] Fix ref file location issue for tct-backgrounds-css3-tests
Merge pull request #341 from xinliux/xinliux/misc/xwalk-1847

[misc][XWALK-1847] Replace picture URL in Resource Timing
Merge pull request #340 from xinliux/xinliux/webapi/xwalk-1871

[webapi][XWALK-1871] Replace picture URL in presentation
Merge pull request #344 from kangxu/kangxu/webapi/tct-backgrounds-css3-tests/updateReference

[wenapi] Fix ref file location issue for tct-backgrounds-css3-tests