TreeFrog Framework version 1.24.0 release

• Modified to use LZ4 compression algorithm.
• Modified to use QLatin1String(), QStringLiteral() and QByteArrayLiteral() where possible.
• Fix a bug of incorrect Content-Type returned for files with uppercase extension.
• Fix a bug of parsing form-data values included backslashes.
• Implemented a function, TMultipartFormData::uploadedFilePath().
• Implemented a function, TSqlQuery::value(const QString &name).
• Implemented functions storing data of hash type for Redis.
• Brushed up THttpRequest class. #234
• Improved functions of TSqlQuery class. #243
• Performance improvement.