master
copyright comment update
unit testing files renaming
fix issue #2339 (#2433)
fix issue in NewIntArrayRange function for package garray (#2374)
improve DeepCopy feature for bunch of components, especially the container and gtime (#1956)
Improved import, by group improt.
Improve the code coverage of the garray,glist module (#1908)
add golangci feature to guarantee codes quality (#2229)