[embeddingapi][XWALK-2425] Add 2 cases for onReceivedTitle when navigation back

- Failure analysis: When navigation back, the onReceivedTitle won't be triggered.

Impacted tests(approved): new 2, update 1, delete 0
Unit test platform: [Android]
Unit test result summary: pass 2, fail 1, block 0
[webapi]Change ref test in tct-multicolumn-css3-tests

Impacted tests(approved):new 0,update 4,delete 0
Unit test platform:[Android]
Unit test result summary:pass 0,fail 4,block 0
[webapi]Change ref test webapi-style-css3-tests

Impacted tests(approved):new 0,update 1,delete 0
Unit test platform:[Android]
Unit test result summary:pass ,fail 0,block 0
[webapi]Change ref test tct-fonts-css3-tests

Impacted tests(approved):new 0,update 4,delete 0
Unit test platform:[Android]
Unit test result summary:pass 4,fail 0,block 0
[webapi]Change ref test tct-canvas-html5-tests

Impacted tests(approved):new 0,update 1,delete 0
Unit test platform:[Android]
Unit test result summary:pass 0,fail 1,block 0
[webapi][XWALK-2572] Fix bug for mediaserver

- Fix bug for mediaserver
- Failure analysis: https://crosswalk-project.org/jira/browse/XWALK-1699

Impacted tests(approved): new 0, update 1, delete 0
Unit test platform: [Tizen IVI]
Unit test result summary: pass 0, fail 1, block 0
[XWALK-2331] Add test case for media source API
[usecase-embeddingapi] Improve XWalkPrefere and multi views usecase

- Improve MultiSurfaceViewsActivity, MultiTextureViewsActivity and XWalkPrefere

Impacted tests(approved): new 0, update 3, delete 0
Unit test platform: [Android]
Unit test result summary: pass 3, fail 0, block 0
[doc][cordova] Update Cordova User and Developer Guide

- Update Cordova_Test_Suite_User_Guide.md to lastest cordova
- Add Cordova_Test_Suite_Developer_Guide.md
Merge pull request #971 from haoxli/haoxli/doc/cordova-develop-guide

[doc][cordova] Update Cordova User and Developer Guide
[misc]update suite name

Impacted TCs num(approved): New 0, update 4 suite name
add test xpk to wrt-digitalsign-tizen-tests, deleted 0
Unit test platform: [tizen][android]
Pack to xpk ok
[wrt]update test suite.json add test app

Impacted TCs num(approved): New 0, update 3 suite name
Unit test platform: [tizen]
UT result: Pass 3, Fail 0
Merge pull request #978 from linshen/shenlin/updatedigital-tizen

[wrt]update test suite.json add test app
[XWALK-1106] Add use case for SpeechSynthesis

- For SpeechSynthesis feature:https://crosswalk-project.org/jira/browse/XWALK-1106
- Fail reason: XWALK-1106 is not ready

Impacted tests(approved):new 1,update 0,delete 0
Unit test platform:[Tizen IVI]
Unit test result summary:pass 0,fail 1,block 0
[usecase-webapi] Optimize extendlist
Merge pull request #981 from Honry/Honry/usecase/optimize-extendlist

[usecase-webapi] Optimize extendlist
Merge pull request #976 from linshen/shenlin/test

[misc]update suite name
Merge pull request #915 from yunxiaoxie/yunxiaoxie/speechsynthesis

 [XWALK-1106] Add use case for SpeechSynthesis
[webapi] Remove Vehicle info ZonePosition attributes and update VehicleInterface

- Since ZonePosition attributes not exist in Zone according to new spec, So reomve these attributes test
- availabilityChangedListener and removeAvailabilityChangedListener in tizen.vehicle.vehicleSpeed

Impacted TCs num(approved): New 5, Update 2, Delete 19
Unit test Platform: Tizen IVI
Tizen test result summary: Pass 4, Fail 25, Blocked 0
Merge pull request #963 from chenxix/chenxi/misc-uiautomation/update-multicolumn-second

[webapi]Change ref test in tct-multicolumn-css3-tests