Fixed slowness during parsing

the slowness is related to unicode conversion : we have a large file (10 Mb) with a lot of (around 40000 matches)  unicode character (eg.: \u0027)
During parsing, there is a call to Util.U2U which will replace that unicode character with a regex.
With U2U call :
'''
creating report builder ....
report builder created.
                size|                time
-----------------------------------------
                9 MB|         0:19:54.118
generating report ....
report generated in 3355 ms
'''

Without :
'''
creating report builder ....
report builder created.
                size|                time
-----------------------------------------
                9 MB|         0:00:19.239
generating report ....
report generated in 3444 ms
'''
And the HTML report is the same.

So It's not necessary to replace unicode during parsing.