Update gitignore

.gitignore

@@ -1,13 +1,31 @@
-/build
-/env*
 *.egg
 *.egg-info
+.eggs/
 *.pyc
 *$py.class
-.coverage*
-/dist
+*.pt.py
+*.txt.py
 *~
-.tox
-nosetests*.xml
-coverage*.xml
-*.sublime-*
+.*.swp
+.coverage
+.coverage.*
+.tox/
+nosetests.xml
+coverage.xml
+nosetests-*.xml
+coverage-*.xml
+tutorial.db
+build/
+dist/
+bin/
+lib/
+include/
+.idea/
+distribute-*.tar.gz
+bookenv/
+jyenv/
+pypyenv/
+env*/
+venv/
+.cache/
+.python-version