[wrt] Update pyunit TIZEN_USER for default value
[wrt] Update pyunit TIZEN_USER for default value

- Setting default value 'app' for TIZEN_USER in manifest

Impacted tests(approved): new 0, update 264, delete 0
Unit test platform: [Tizen]
Unit test result summary: pass 264, fail 0, block 0

ibelem/crosswalk-test-suite,pk-sam/crosswalk-test-suite,JianfengXu/crosswalk-test-suite,JianfengXu/crosswalk-test-suite,Shao-Feng/crosswalk-test-suite,haoxli/crosswalk-test-suite,Shao-Feng/crosswalk-test-suite,kangxu/crosswalk-test-suite,kaixinjxq/crosswalk-test-suite,yhe39/crosswalk-test-suite,kaixinjxq/crosswalk-test-suite,crosswalk-project/crosswalk-test-suite,ibelem/crosswalk-test-suite,kangxu/crosswalk-test-suite,wanghongjuan/crosswalk-test-suite,wanghongjuan/crosswalk-test-suite,zqzhang/crosswalk-test-suite,haoyunfeix/crosswalk-test-suite,YongseopKim/crosswalk-test-suite,jiajiax/crosswalk-test-suite,crosswalk-project/crosswalk-test-suite,zhuyongyong/crosswalk-test-suite,zqzhang/crosswalk-test-suite,haoxli/crosswalk-test-suite,chunywang/crosswalk-test-suite,zhuyongyong/crosswalk-test-suite,kangxu/crosswalk-test-suite,pk-sam/crosswalk-test-suite,haoxli/crosswalk-test-suite,XiaosongWei/crosswalk-test-suite,crosswalk-project/crosswalk-test-suite,ibelem/crosswalk-test-suite,jiajiax/crosswalk-test-suite,yunxliu/crosswalk-test-suite,yhe39/crosswalk-test-suite,haoxli/crosswalk-test-suite,kaixinjxq/crosswalk-test-suite,zhuyongyong/crosswalk-test-suite,jiajiax/crosswalk-test-suite,yhe39/crosswalk-test-suite,Honry/crosswalk-test-suite,ibelem/crosswalk-test-suite,JianfengXu/crosswalk-test-suite,BruceDai/crosswalk-test-suite,pk-sam/crosswalk-test-suite,JianfengXu/crosswalk-test-suite,kangxu/crosswalk-test-suite,chunywang/crosswalk-test-suite,zhuyongyong/crosswalk-test-suite,yhe39/crosswalk-test-suite,crosswalk-project/crosswalk-test-suite,yunxliu/crosswalk-test-suite,ibelem/crosswalk-test-suite,yunxliu/crosswalk-test-suite,yhe39/crosswalk-test-suite,YongseopKim/crosswalk-test-suite,ibelem/crosswalk-test-suite,jiajiax/crosswalk-test-suite,crosswalk-project/crosswalk-test-suite,chunywang/crosswalk-test-suite,jacky-young/crosswalk-test-suite,kangxu/crosswalk-test-suite,haoxli/crosswalk-test-suite,kaixinjxq/crosswalk-test-suite,qiuzhong/crosswalk-test-suite,kangxu/crosswalk-test-suite,Shao-Feng/crosswalk-test-suite,haoyunfeix/crosswalk-test-suite,wanghongjuan/crosswalk-test-suite,yhe39/crosswalk-test-suite,qiuzhong/crosswalk-test-suite,Honry/crosswalk-test-suite,BruceDai/crosswalk-test-suite,YongseopKim/crosswalk-test-suite,yunxliu/crosswalk-test-suite,Honry/crosswalk-test-suite,qiuzhong/crosswalk-test-suite,wanghongjuan/crosswalk-test-suite,Honry/crosswalk-test-suite,Shao-Feng/crosswalk-test-suite,BruceDai/crosswalk-test-suite,jacky-young/crosswalk-test-suite,YongseopKim/crosswalk-test-suite,YongseopKim/crosswalk-test-suite,yunxliu/crosswalk-test-suite,Shao-Feng/crosswalk-test-suite,zhuyongyong/crosswalk-test-suite,zhuyongyong/crosswalk-test-suite,kangxu/crosswalk-test-suite,BruceDai/crosswalk-test-suite,zhuyongyong/crosswalk-test-suite,Shao-Feng/crosswalk-test-suite,crosswalk-project/crosswalk-test-suite,crosswalk-project/crosswalk-test-suite,zhuyongyong/crosswalk-test-suite,BruceDai/crosswalk-test-suite,qiuzhong/crosswalk-test-suite,JianfengXu/crosswalk-test-suite,kaixinjxq/crosswalk-test-suite,jacky-young/crosswalk-test-suite,zqzhang/crosswalk-test-suite,kaixinjxq/crosswalk-test-suite,chunywang/crosswalk-test-suite,kaixinjxq/crosswalk-test-suite,XiaosongWei/crosswalk-test-suite,jiajiax/crosswalk-test-suite,yunxliu/crosswalk-test-suite,wanghongjuan/crosswalk-test-suite,kaixinjxq/crosswalk-test-suite,ibelem/crosswalk-test-suite,JianfengXu/crosswalk-test-suite,wanghongjuan/crosswalk-test-suite,wanghongjuan/crosswalk-test-suite,pk-sam/crosswalk-test-suite,haoxli/crosswalk-test-suite,Shao-Feng/crosswalk-test-suite,XiaosongWei/crosswalk-test-suite,qiuzhong/crosswalk-test-suite,haoyunfeix/crosswalk-test-suite,wanghongjuan/crosswalk-test-suite,YongseopKim/crosswalk-test-suite,haoyunfeix/crosswalk-test-suite,zqzhang/crosswalk-test-suite,jiajiax/crosswalk-test-suite,kangxu/crosswalk-test-suite,crosswalk-project/crosswalk-test-suite,pk-sam/crosswalk-test-suite,chunywang/crosswalk-test-suite,Honry/crosswalk-test-suite,yunxliu/crosswalk-test-suite,ibelem/crosswalk-test-suite,jacky-young/crosswalk-test-suite,XiaosongWei/crosswalk-test-suite,JianfengXu/crosswalk-test-suite,yhe39/crosswalk-test-suite,XiaosongWei/crosswalk-test-suite,haoyunfeix/crosswalk-test-suite,haoxli/crosswalk-test-suite,XiaosongWei/crosswalk-test-suite,Honry/crosswalk-test-suite,jiajiax/crosswalk-test-suite,pk-sam/crosswalk-test-suite,chunywang/crosswalk-test-suite,BruceDai/crosswalk-test-suite,haoyunfeix/crosswalk-test-suite,haoyunfeix/crosswalk-test-suite,jacky-young/crosswalk-test-suite,pk-sam/crosswalk-test-suite,zqzhang/crosswalk-test-suite,chunywang/crosswalk-test-suite,zqzhang/crosswalk-test-suite,YongseopKim/crosswalk-test-suite,BruceDai/crosswalk-test-suite,yunxliu/crosswalk-test-suite,XiaosongWei/crosswalk-test-suite,chunywang/crosswalk-test-suite,qiuzhong/crosswalk-test-suite,Honry/crosswalk-test-suite,yhe39/crosswalk-test-suite,haoyunfeix/crosswalk-test-suite,haoxli/crosswalk-test-suite,zqzhang/crosswalk-test-suite,Honry/crosswalk-test-suite,jacky-young/crosswalk-test-suite,qiuzhong/crosswalk-test-suite,BruceDai/crosswalk-test-suite,zqzhang/crosswalk-test-suite