2017/5/16: Development version of xTAPP1705061 was released.
 Fixed the problem in the output data of Wannier functions in the reciprocal space. This problem also means that the Wannier functions
in the real space also had the problem. This miscalculated Wannier functions can be distinguished easily from the normal ones.

2017/5/6: Development version of xTAPP170506 was released.
 The problem in the treatment of symmetries for calculations of the noncollinear magnetism was fixed.
 For calculations of the noncollinear magnetism, we can explicitly specify the timereversal (spinreversal) symmetry operation now. We can describe the magnetic space group now.
 Mistakes to use single precision intrinsic functions in the code was fixed.
The test by xTAPPtest set was not produced physically significant differences.

2016/7/15: Development version of xTAPP160715 and xTAPPutil160715 was released.
 rok2dx was revised to function when spinorbit support is enabled.
 sym2xti.py was added. This tool converts the symmetry data generated by the symmetry detection function of phonopy. This tool is based on the code by Dr. K. Nakamura in Kyushu Institute of Technology. There is an example of the usage in tutorial.tex.

2016/6/29: Development version of xTAPP160629 was released.
 We can compute Wannier functions with spinorbit and ultrasoftpseudopotentials. This also means we can compute spontaneous electric polarization using ultrasoftpseudopotential also. We can also use rhombohedral cells in the computation.

2016/6/14: Development version of xTAPPutil160614 was released.
 wfk2dx was revised to support spinorbit interaction.

2016/4/20: Development version of xTAPP160420 was released.
 Spinorbit interaction and noncollinear magnetism are supported.
 Spinorbit interaction and noncollinear magnetism are supported in stress calculations.
 The internal representation of the wave functions are modified. This means that the rounding error will be different.
