Adds binary and multiclass demos.

New urls:
	.../demo/classification/index
	.../demo/classification/binary
	.../demo/classification/multiclass
Cleaning minor things.
- statically specify urls in urls.py
- remove import *'s
Adds binary and multiclass demos.

New urls:
	.../demo/classification/index
	.../demo/classification/binary
	.../demo/classification/multiclass
Cleaning minor things.
- statically specify urls in urls.py
- remove import *'s
Enhanced User Interface