Small documentation update (still 1.1.1).

Small change.

This is the last commit of version 1.0.9.

Update of release-notes. This is the last commit

of version 1.0.0.

This is the last commit of version 0.9.9 still

compatible with QE-6.2.1.

Version number update. This is the last commit of version 0.9.0.

This is the last commit of thermo_pw.0.8.0.

make.depend updated. Updated to the last QE changes.

Small cleanup. A useless call to a routine removed.

make.depend updated.

This is the last commit of version 0.7.0.

This version is compatible with QE 6.1.