added statistics operations: amean, gmean, hmean. Added matrix operations in matrix.op table
Solved problems with amean and gmean
Added test for matrix stats table
Merge pull request #103 from pakozm/matrix_and_statistics

Matrix and statistics. Added stats.mstats with amean, gmean, hmean functions, and matrix operations at matrix.op.
Added verbosity to test on the fly, autoencoders, avoiding Travis CI no output error
New matrix methods
Added messages to asserts in matrix functions
Added new iterator implementation (minor cosmetic changes)
Merge pull request #105 from pakozm/iterator

Added new iterator implementation (minor cosmetic changes)
Improved print in matrix
changes in matrix print
More matrix print
Minor change in matrix __call metamethod, allowing to specify m({},4) using {} as sinonym of ':'
Solved bug
Added squeeze method in other matrix flavours
Added squeeze method in other matrix flavours, solved problem in fill call
Solved problems with oop-iter
New matrixBool type
ADded new files
Added defmode in serialization helpers