[webapi][XWALK-2147] Add default color reference on page
[wrt][XWALK-1591]Fix XWALK-1591

[Detailed commit message (if have)]
Impacted TCs num(approved): New 0, update 3, deleted 0
Unit test platform: [tizen]
Unit test result summary: Pass 3, Fail 0, Blocked 0
[usecase-webapi] Improve WebSocket usecase

- Adjust the case with screen view

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 wrt test suite name

Unit test platform: [tizen]
Unit test result summary: Auto suite pack to pure, manu suite pack to wgt
Fix for tct-extra-html5-tests/base64.html

[Problem] The following test cases from tct-extra-html5-tests/base64 fail
    - base64_atob_ab_cd
    - base64_atob_abcd_space
    - base64_atob_space_abcd
[Cause] Those test cases fails since  Chromium implements the newest
        standard of base64 feature but the test has not been updated yet.

[Solution] Apply latest changes of base64.html from
           http://w3c-test.org/html/webappapis/atob/base64.html

BUG=XWALK-2227
[misc-cordove] Improve cordova usecase description
[usecase-webapi] Improve Audio usecase

- No need the auto replay, not auto hide the play bar for audio
- Add DisablePassButton and EnablePassButton

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
[wrt]Update pack.sh to wrt-i18nmanu-tizen-tests

Unit test platform: [tizen]
Unit test result summary: Pack to wgt and pass 1 , Fail 0, Blocked  0
[usecase-webapi] Improve Application usecase

- Change "launch successfully" to "Please checking the app launched on GUI and service process commandline".
- Change "Kill APP" to "kill App".
- Show the current app info by default.
- Show static dialog for the list all info, using scroll bar.
- Change app information to table.
- Fail Reason: get context list fail.

Impacted TCs num(approved): New 0, Update 1, Delete 0
Unit test Platform: [Tizen-IVI]
Test result summary: Pass 0, Fail 1, Blocked 0
[usecase-wrt] Update usecase framework for wrt-usecase-android-tests
[wrt] Update suite name in xml for wrt-rtcoremanu-android-tests
Merge pull request #630 from kangxu/kangxu/wrt/wrt-rtcoremanu-android-tests/updateSuiteName

[wrt][XWALK-2241] Update suite name in xml for wrt-rtcoremanu-android-tests
Merge pull request #624 from wanghongjuan/wanghongjuan/misc/cordova-improve

[misc-cordove] Improve cordova usecase description
[wrt] Update pack.sh for wrt-internetstdmanu-android-tests
[usecase-cordova] Remove redundant element from cordova usecase
Merge pull request #616 from jizydorczyk/XWALK-2227

Fix for tct-extra-html5-tests/base64.html
[usecase-webapi] Improve SystemInfo usecase

- Adjust the case with screen view

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 ResourceTime w3c usecase

- Show image after loading it
- Use li to format the information

Impacted tests(designed|approved): new 0, update 1, delete 0
Unit test platform: [Tizen IVI][Android]
Unit test result summary: pass 1, fail 0, block 0
[usecase-webapi] Improve MediaQueries w3c usecase

- Update the content description
- Change the page interface and add details for every button

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
Merge pull request #606 from linshen/update-commandline

[wrt]update wrt test suite name