New argparser library
Merge branch 'master' into argparser
cf.h -> configment.h
Merge branch 'master' into argparser
Useless ValueType::LIST has been removed

ValueType represents the scalar type. The stored value becomes a
list of ValueType objects if action_type is APPEND or APPEND_CONST.
New NArgs class to register number of arguments
Help option
print_help()
Options class to store parsing results
Split source in multiple files
Accept unexpected args
Parsing
ArgReader
ArgReader has been removed
Parsing is working
Parsing
Template definition of operator[] (scalar)

operator[] (non-object-type) are now defined with templates and
mpl.
Merge branch 'template_operator' into argparser
Parsing
Argument parsing is working