master uses deprecated features of Qt

[hartwork]

Deprecated symbols

• QProcess::start
• QLinkedList
• QMap<K, V>::insertMulti

Compiler output

repository.cpp:233:21: warning: ‘template<class T> class QLinkedList’ is deprecated: Use std::list instead [-Wdeprecated-declarations]
repository.cpp:877:24: warning: ‘void QProcess::start(const QString&, QIODevice::OpenMode)’ is deprecated: Use QProcess::start(const QString &program, const QStringList &arguments,OpenMode mode = ReadWrite) instead [-Wdeprecated-declarations]
svn.cpp:523:24: warning: ‘QMap<K, V>::iterator QMap<K, V>::insertMulti(const Key&, const T&) [with Key = QByteArray; T = svn_fs_path_change2_t*]’ is deprecated: Use QMultiMap for maps storing multiple values with the same key. [-Wdeprecated-declarations]
svn.cpp:1019:24: warning: ‘QMap<K, V>::iterator QMap<K, V>::insertMulti(const Key&, const T&) [with Key = QByteArray; T = svn_node_kind_t]’ is deprecated: Use QMultiMap for maps storing multiple values with the same key. [-Wdeprecated-declarations]
svn.cpp:1100:24: warning: ‘QMap<K, V>::iterator QMap<K, V>::insertMulti(const Key&, const T&) [with Key = QByteArray; T = svn_node_kind_t]’ is deprecated: Use QMultiMap for maps storing multiple values with the same key. [-Wdeprecated-declarations]
svn.cpp:1339:24: warning: ‘QMap<K, V>::iterator QMap<K, V>::insertMulti(const Key&, const T&) [with Key = QByteArray; T = svn_node_kind_t]’ is deprecated: Use QMultiMap for maps storing multiple values with the same key. [-Wdeprecated-declarations]

CC @svuorela