[wrt]fix wgt launch error,update wrt-commoni18n-webapp-tests config.xml

[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
Merge pull request #429 from linshen/update-i18n-webapp

[wrt]fix wgt launch error,update wrt-commoni18n-webapp-tests config.xml