Update gitignore. Add schema.

.gitignore

@@ -95,3 +95,4 @@ ENV/
 .ropeproject
 
 config.py
+chanbot.sqlite

schema.sql

@@ -0,0 +1,2 @@
+CREATE TABLE IF NOT EXISTS poll(callback int NOT NULL, user_id int, UNIQUE(callback, user_id));
+INSERT INTO poll values(0, 0);