FIX task_duration_list
FIX deadline -> dealLine

regression
m646 relationships in issueInfo (not yet finished)
m646 relationships : method for tab from tools to issue_info_tools
m646_relationships :
update buildTab method for display :
workaround deleted
URL method called for first arg (issue ID)
Table relationships hide if empty
[m000646] FIX relationships

- 2500 & 2501 not reported or wrong
- code cleanup
- perf
code cleanup: remove unused qsort()
m1372_no_login_if_disabled : add enabled = 1 in login query