Old parser using simple matcher

Branch cleanup in preparation for v1.0.0

Branch cleanup in preparation for v1.0.0

tag parser version 1.2.2

improve parser output for pseudopotentials and xc-functionals:

* set 'method_atom_kind_pseudopotential_name' from basename of pp file
* add all obvious qe-specific definitions of XC functionals to common metaInfo
  and update references in the QE parser

Completely overhaul the XC-Functional setting mechanism, output should now comply with metaInfo standard

improve treatment of timespans