[ISSUE-39] grind failed to merge test results due to encode error
[ISSUE-39] grind failed to merge test results due to encode error

Support unicode characters in input and output of test_results XML files.

xiao-chen/dist_test,cloudera/dist_test,umbrant/dist_test,cloudera/dist_test,xiao-chen/dist_test,xiao-chen/dist_test,xiao-chen/dist_test,umbrant/dist_test,cloudera/dist_test,cloudera/dist_test,umbrant/dist_test,umbrant/dist_test