plotting.hist: index overflow bins
plotting.hist: exclude overflow by default in generators
plotting.hist: iter iterates over bin proxies
plotting.hist: __getitem__ and __setitem__ provide/accept BinProxies
plotting.hist: fix unit tests
docs: rm start.rst
update root2matplotlib and plotting.utils to new binning convention
plotting.hist: minimum -> min and maximum -> max
hist: accept 2-tuple in __setitem__ to set both content and error
remove unneeded DomainError
begin experimental HistView concept for slicing and rebinning