Update to the latest stable release. The main changes are:

• added .clamp() member function
• expanded the standalone clamp() function to handle complex values
• more efficient use of OpenMP
• vector, matrix and cube constructors now initialise elements to zero by default;
• element initialisation can be disabled via the fill::none specifier, eg. mat X(4,5,fill::none);
• faster handling of triangular matrices by log_det();
• added log_det_sympd() for log determinant of symmetric positive matrices;
• added ARMA_WARN_LEVEL configuration option, to control the degree of emitted warning messages;
• reduced the default degree of warning messages, so that failed decompositions, failed saving/loading, etc, no longer emit warnings;
• faster handling of symmetric positive definite matrices by pinv();
• expanded .save() /.load() for dense matrices to handle coord_ascii format;
• for out of bounds access, element accessors now throw the more nuanced std::out_of_range exception, instead of only std::logic_error;
• improved quality of random numbers.