instructions for blist

git-svn-id: https://bucket.mit.edu/svn/nilm/nilmdb@10830 ddd99763-3ecb-0310-9145-efcb8ce7c51f

README.txt

@@ -1,4 +1,8 @@
 To install, 
 
-   python setup.py install
+  python setup.py install
 
+Needs blist:
+  
+  sudo apt-get install python-stdeb
+  pypi-install blist