[usecase-webapi] Make usecase of Workers better.

- Modify the button name 'Start' to 'Calculation'.

Impacted tests(approved): New 0, Update 1, Delete 0
Unit test platform: [Tizen IVI]
Unit test result summary: Pass 1, Fail 0, Block 0
[usecase-webapi] Improve vibration for misc usecase w3c

- Use vibration "on/off" button and button style "center"

Impacted TCs num(designed): New 0, Update 1, Delete 0
Unit test Platform: Tizen M0
Tizen test result summary: Pass 1, Fail 0, Blocked 0
extract some common steps into libiary
[usecase-webapi] Improve SIMD usecase

- Adjust the case with screen view

Impacted TCs num(approved): New 0, Update 1, Delete 0
Unit test Platform: [Andriod]
Test result summary: Pass 1, Fail 0, Blocked 0
[usecase-webapi] Improve the w3c usecase for HrtimeTizen
[usecase-webapi] Improve the usecase for HrtimrAndroid

- Change button to "Waiting" when play, and disable the button. Change back when play end.
- Put the result info "The time of video playing is" below the play button.
- Remove "Android" and "Tizen" in test purpose

Impacted tests(designed|approved): new 0, update 1, delete 0
Unit test platform: [Android]
Unit test result summary: pass 1, fail 0, block 0
Update pack script and BDD test framework.
[usecase-webapi] Improve Flexible w3c usecase

- Draw the flex box one by one in the first page
- Give a meaningful description of pass/fail criteria whether in sub test title, or case details.

Impacted tests(approved): new 0, update 1, delete 0
Unit test platform: [Tizen IVI][Android]
Unit test result summary: pass 1, fail 0, block 0
Add check url and click element coords steps
[usecase-webapi] Improve AppURL usecase

- Group the url info in a div, and Add a get button.

Impacted TCs num(designed): New 0, Update 1, Delete 0
Unit test Platform: Tizen M0,Tizen IVI
Tizen test result summary: Pass 1, Fail 0, Blocked 0
Update tests for atip new steps
[usecase-webapi] Fix bugs of Canvas.

- Clean the show frame when click the buttons everytime.
- Better to enhance the test: Roate 90, 180, 270, 360. Scale 50%, 200%.
- Make sure that each action based on the original picture.

Impacted tests(approved): New 0, Update 1, Delete 0
Unit test platform: [Tizen IVI]
Unit test result summary: Pass 1, Fail 0, Block 0
[usecase-webapi] Improve CSSAnimation usecase.

- Remove test again.
- Reduce the animation delay time.
- Add description for the animation.

Impacted tests(approved): New 0, Update 1, Delete 0
Unit test platform: [Tizen IVI]
Unit test result summary: Pass 1, Fail 0, Block 0
[wrt]Update testcase name in tests.xml

UT summary: Auto run all tcs ok.
[wrt] Rename suite and update tcs for wrt-webfeaturesmanu-android-tests
[wrt]update testcase suite name for wrt-packagemgt-tizen-tests

UI summary: pack to wgt and run auto/manu tcs showing normally
[wrt] Rename appsource for serval suites
[usecase-webapi] Improve infomation of usecase in tizen and w3c.

Impacted tests(approved): New 0, Update 1, Delete 0
Unit test platform: [Tizen IVI]
Unit test result summary: Pass 1, Fail 0, Block 0
Merge pull request #592 from linshen/update-manifest-tizen

[wrt]Update wrt-manifest-tizen-tests testcase name in tests.xml
Merge pull request #594 from linshen/update-packagement

[wrt]update testcase suite name for wrt-packagemgt-tizen-tests