Fabio v0.3.0

• Migrate to PEP8 for class names.
• Use a factory & registry instead of fiddling in sys.modules for instance creation
• dim1, dim2, bpp and bytecode are properties. Use their private version while reading.
• FabioImage.header[“filename”] has disappeared. Use FabioImage.filename instead.
• Automatic backported package down to debian-8
• Compatibility checked with 2.6, 2.7, 3.2, 3.3, 3.4 and 3.5
• Continuous integration based on appveyor (windows) and travis (linux)
• Support for numpy 2d-array and PNM saving
• Move away from Sourceforge.