Add Slurm option mem-per-cpu
 Add new attribute mem_per_cpu to AutoparalConf
Merge remote-tracking branch 'mpmaster/master'
 Remove ref_file(s) helper functions, revert to relative paths for test files
Merge remote-tracking branch 'mpmaster/master'
Merge pull request #59 from gmatteo/master

Support for PAW setups in XML format