[legacyRender] fix #100 Cool URI expand

- support XOOPS_ROOT_PATH is not server document root
- more flexible
- support PATH_INFO
Merge pull request #101 from XoopsX/coolurl_rule

[legacyRender] fix #100 Cool URI expand
#84 LegacyRender speedup fix cause the problem
Update CHANGES.txt
Update versions
Merge branch 'master' into 2.3