v0.1.3

DFTK v0.1.3

Diff since v0.1.2

Merged pull requests:

• Iterative computation of the dielectric matrix (#221) (@antoine-levitt)
• More flexible mixing interface (#225) (@mfherbst)
• Kernel harmonization (#253) (@antoine-levitt)
• Allow to export lattice and cell to ASE atoms. (#254) (@mfherbst)
• Implement simplified Resta model (#255) (@mfherbst)
• Two changes in examples (#256) (@ssirajdine)