[webapi][XWALK-3190] Update touch tests from w3c

- Update latest tests from w3c
- Reomve touchevent/TouchList_attributes_exist.html and touchevent/Touch_attributes_exist.html, since w3c/single-touch-manual.html contain these check point

Impacted tests(approved): new 0, update 41, delete 0
Unit test platform: [android] crosswalk-10.38.222
Unit test result summary: pass 41, fail 0, block 0
Merge pull request #1544 from xinliux/webapi/touch/XWALK-3190

[webapi][XWALK-3190] Update touch tests from w3c