Log Message:
Changes 5.3:
This release fixes several bugs and adds two new pie charts about the most use \ 
top second level domains. It is also possible to do DNS lookup of Ip addresses \ 
inside SquidAnalyzer, see UseClientDNSName new configuration directive. This can \ 
slow down dramatically the squid-analyzer performances but you can adjust the \ 
DNS lookup timeout to prevent waiting slow DNS server, see DNSLookupTimeout new \ 
configuration directive.

- Update and fix first and second top level domain name.
- Add new directive DNSLookupTimeout to change the default timeout for
  DNS lookup. Add 0.0001 second timeout when SquidAnalyzer look for a DNS
  name and can't find a name server.
- Add pie chart of top second level domains.
- Fix some HTML tag issues and table ordering on Top domain hits and Top
  url hits.
- Update INSTALL file to remove GD::Graph requirements.
- Change underscore used to replace space in user name by the special
  string _SPC_ so that underscore will not be wrongly replaced on HTML
  output.
- Fix pt_BR translation with charset to utf-8 and a few words with
  accentuation fix.
- Allow Ip addresses on user names to be replaced by their DNS name, this
  feature is activated by a new directive: UseClientDNSName.
- Add missing description of --no-year-stat option to documentation and
  squid-analyzer usage.