Adapted usage chapter for auto-generated documentation

- removed tempfile and glob modules from module list
- moved temp dir generation code from TestCase into Patcher
- see #189
diff --git a/docs/conf.py b/docs/conf.py
index 998c576..660f6a6 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -63,9 +63,9 @@
 # built documents.
 #
 # The short X.Y version.
-version = '3.2'
+version = '3.3'
 # The full version, including alpha/beta/rc tags.
-release = '3.2'
+release = '3.3'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.