Update Qt Assistant's TOC for Qt 5.3

Task-number: QTBUG-37643
Task-number: QTBUG-37649

Change-Id: I4c41e971d2656753d4249a2690101fc510f5e193
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
Compile.

Change-Id: Ifa387592ec4bb39e860b8a62f19ffcbcaf4a22f3
Reviewed-by: Morten Johan Sørvig <morten.sorvig@digia.com>