update README, closes #15

README.md

@@ -90,7 +90,11 @@ I've tested the software on both Ubuntu Server 13.04 and Windows 8, so both shou
 Installation
 ------------
 
-### Ubuntu ###
+### Ubuntu 12.04 and earlier ###
+
+Follow the instructions by broknbottle in issue #13 to install Python 3.3.x, then follow the 13.04 instructions.
+
+### Ubuntu 13.04/13.10 ###
 
 Install mongodb-10gen by following the instructions here:
 http://docs.mongodb.org/manual/tutorial/install-mongodb-on-ubuntu/
@@ -312,6 +316,10 @@ This means that your config.py is out of date. Re-copy config.sample.py and re-e
 Generally speaking this should become less of a problem as time goes on - only new features require new
 config options, and the project is mostly in bugfix mode at the moment.
 
+- I get an error "cannot import regex" or something similar!
+
+Re-run `pip3 install -r requirements.txt`. You're missing some libraries that we use.
+
 - Start.py keeps failing with some kind of EOFError or just some random error.
 
 Python's Multiprocessing Pool is such that any error will tend to flip it out and kill all the workers,