Some are corrected, others are TODO.

To find which user agents should be ignored (bots, monitoring, ...).

Also, switch "week" definition (graph granularity for "--period quarter")
from "7 days chunks starting at 1st of month" to "7 days chunks starting
at 1st of january", so fewer dates need tweaking.

Similar to cb29ab44 .

This can happen when all hits are detected as "no_module" for ERP5 stats.

Include ERP5Site_viewSearchResult, though.

Support for escaped quotes in strings caused bad performance, so create
two regexes: a cheap & brittle one, and an expensive & comprehensive one.
+20% parsing speed !

Also, keep it at table bottom.