Create folder-based module and use VERSION file

use VERSION to avoid importing the module before it's installed

float_raster/__init__.py

@@ -0,0 +1,16 @@
+"""
+Module for rasterizing polygons, with float-precision anti-aliasing on
+ a non-uniform rectangular grid.
+
+See the documentation for float_raster.raster(...) for details.
+"""
+
+import pathlib
+
+from .float_raster import *
+
+__author__ = 'Jan Petykiewicz'
+
+with open(pathlib.Path(__file__).parent / 'VERSION', 'r') as f:
+    __version__ = f.read().strip()
+