Print PO, Lines description changes & IE cookie config

1. IE cookie config (required to add an extra BrowserFile.browser. SO :
6983732 & http://forums.asp.net/t/1838010.aspx?IE+10+adding+trash+to+URL
2. AOT needed Line description to include comment (as visible in MAs PO
print)
3. Fix activity logging for KO based print PO