Update docs to not use UML diagrams. Fixes issue #148.
diff --git a/docs/build.sh b/docs/build.sh
index 502d8f0..6f9cddc 100755
--- a/docs/build.sh
+++ b/docs/build.sh
@@ -28,4 +28,4 @@
 find ../apiclient/ -name "*.py" | sed "s/\/__init__.py//" | sed "s/\.py//" | sed "s/^\.\.\///" | sed "s#/#.#g" | xargs python `which pydoc` -w
 find ../oauth2client/ -name "*.py" | sed "s/\/__init__.py//" | sed "s/\.py//" | sed "s/^\.\.\///" | sed "s#/#.#g" | xargs python `which pydoc` -w
 find ../uritemplate/ -name "*.py" | sed "s/\/__init__.py//" | sed "s/\.py//" | sed "s/^\.\.\///" | sed "s#/#.#g" | xargs python `which pydoc` -w
-epydoc --output epy --graph all --docformat plaintext apiclient oauth2client
+epydoc --output epy --graph classtree --docformat plaintext apiclient oauth2client