apache-frontend: Update todo list

software/apache-frontend/TODO.txt

 Apache:
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+- Return parameters "site-url" for backward compatibility (important)
+- Use gzip by default (important)
 - set a redirection of / in option
-- set more than one virtualhost with its ssl certificates
+- Implement support of multiple ip (if possible) for multiple ssl (other solution is to ask master instance but quid to much apache process?)
+- SSL engine on port 80? (important)
+- Log use info instead of warning to log access ?
+- Check ipv6 for master instance and provide it to slave instances
 
-Bug:
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-Do not run other software type templates if not concerned (ie: type different of their own)
+Squid:
+======
+- Only cache in ram. Problems with to much squid on the computer or too many slave?
+
+SlapOS:
+=======
+- Move slave configuration directory to etc (generated by slapgrid)
+- Order and split templates into sub-directories. eg: One subdirectory per software type and one common directory.
+- Rename templates to be more explicit
+- Implement intelligent apache graceful -> Should check slave configuration and return error to slave if there is a problem (important but difficult)
+- useless srv/squid_cache directory so far