using SF packages for building ArchLinux release
added ADT type to variant -- work in progress
Merge branch 'master' of https://github.com/mbarbos/Wolframe
working on abstract arithmetic data types (datetime) -- work in progress
removed wrapper langbind/normalizeFunction.hpp
renamed abstract data type to custom data type
...
added date time data type -- work in progress
fixed normalizer ICU (latest changes not adapted)
fixed ambiguity in variant constructors for some platforms