Version 1.0.1 -- bugfix release

This fixes a bug reported by Sebastien Moretti, wherein users would get an import error if they supplied the full path to the moccasin_CLI.py or moccasin_GUI.py interfaces rather than executing them from within the moccasin directory.

This also checks for the version of wxPython and complains if it's less than 2.9. This is needed because the GUI code relies on wx.html2, which was introduced in 2.9.