Update to catch verbose < 0 case for Point._infostr and improve verbose=0 behavior for Pointset._infostr
Added 'long' to list of _int_types for 64-bit system compatibility; retained a try-except import for scipy's factorial function in KroghInterpolator for backward compat
Added _config.yml to support Jekyll on github
Updated _all_int and way of creating _all_* tuples
Merge pull request #25 from robclewley/develop

Merge
Improve a bit 'factorial' related changes