don't ignore every 'lib' folder, just the one at the root of the venv

.gitignore

@@ -2,6 +2,7 @@
 *.egg-info
 *~
 .coverage
+/lib
 coverage.xml
 nosetests.xml
 bin
@@ -10,7 +11,6 @@ deps
 dist
 htmlcov
 include
-lib
 web/current
 data
 env