[ENH] add component type info to print_tree() #246
[MERGE]
Merge commit '756674bff2d3c80597f6da33cb93985e3d765943'
[ENH] AnalyticalFunction improved error reporting, [ADD] parseAndDeduceVariables for auto-detecting variable names
[ENH] renamed parse_and_deduce_variables
Merge pull request #249 from ddeconinck/master

my awesome changes