Fix old changelog title
Fix slash in index
Avoid saying "full path" where the path can be relative
Use highest available IE rendering mode

This applies to HTML Help Viewer, which always operates in IE7 mode when
the installed IE version is >= 7, due to its use of the WebBrowser ctrl.
This purportedly only affects rendering mode, not browser mode, which
can only be overridden via the FEATURE_BROWSER_EMULATION registry key.
v1.1.14.02