fix(recipe): No more memory leak once TreeCache was closed (#524)

fix(recipe): Fix memory leak of TreeCache recipe.

Fix memory leak on idle handler and on closed TreeCache.
Add new memory tests for TreeCache recipe that uses
objgraph and other tests for various handler on TreeCache.
Let TreeCache start in a safe way. The doc now suggest to
close unused TreeCache.

1 files changed, 1 insertions, 0 deletions

diff --git a/setup.py b/setup.py
index 8676e29..ee055d5 100644
--- a/setup.py
+++ b/setup.py
@@ -25,6 +25,7 @@ tests_require = install_requires + [
     'nose',
     'flake8',
     'pure-sasl',
+    'objgraph',
 ]
 
 if not (PYTHON3 or PYPY):