KDE PIM/MS Windows/SQLite Folder Indices/merge

Validation of the SQLite folder indices merge into kdepim trunk (805075).

• compactionjob.cpp
  • void MboxCompactionJob::done( int rc ): the only addition result of KDE_rename() is checked, return immediately on failure
  • status: OK

• folderstorage.cpp
• folderstorage.h

• kmailicalifaceimpl.cpp

• kmfolder.cpp
• kmfolder.h

• kmfolderdir.cpp

• kmfolderindex.cpp
• kmfolderindex.h

• kmfoldermaildir.cpp

• kmfoldermbox.cpp

• kmfoldersearch.cpp

• kmheaders.cpp
• kmheaders.h

• kmkernel.cpp

• kmmsgbase.cpp
• kmmsgbase.h

• kmmsgdict.cpp

• kmmsginfo.cpp
• kmmsginfo.h

• messageproperty.cpp
  • minor optimizations only added, for example 1. instead of 2.:
    1. QMap<quint32, QPointer<KMFolder> >::ConstIterator it = sFolders.constFind( serNum );
       return it == sFolders.constEnd() ? 0 : (*it).operator->();
    2. if (sFolders.contains(serNum))
         return sFolders[serNum].operator->();
       return 0;