Cleaned out the tests folder. Added simple test gerber. Added simple unit test using the GUI.

tests/other/test_rt.py

@@ -0,0 +1,24 @@
+from rtree import index as rtindex
+
+def pt2rect(pt):
+    return pt[0], pt[1], pt[0], pt[1]
+
+pts = [(0.0, 0.0), (1.0, 1.0), (0.0, 1.0)]
+
+p = rtindex.Property()
+p.buffering_capacity = 1
+p.dimension = 2
+rt = rtindex.Index(properties=p)
+#rt = rtindex.Index()
+
+# If interleaved is True, the coordinates must be in
+# the form [xmin, ymin, ..., kmin, xmax, ymax, ..., kmax].
+print rt.interleaved
+
+[rt.add(0, pt2rect(pt)) for pt in pts]
+print [r.bbox for r in list(rt.nearest((0, 0), 10, True))]
+
+for pt in pts:
+    rt.delete(0, pt2rect(pt))
+    print pt2rect(pt), [r.bbox for r in list(rt.nearest((0, 0), 10, True))]
+