PySCF-1.4.5 release

Added a eigenvalue filter in tduks to solve numerical stability issue

Pyscf-1.4.4 release

Symmetric grids in cubegen. For issue pyscf#154

Update memory estimation for pbc.df.fft_jk

Version 1.4.1

Update setup.py and install doc

1.4 beta release

Bugfix in CISD t2+=t2.transpose(1,0,3,2)

Fix bug in mol.has_ecp function