Update ipdb from 0.11 to 0.12

pyup-bot · pyup-bot · commit 36924bfde46c · 2019-04-01T16:16:18.000+03:00
diff --git a/demos/blog/requirements-dev.txt b/demos/blog/requirements-dev.txt
@@ -1,4 +1,4 @@
 pyflakes==2.1.1
 pep8==1.7.1
 pytest==4.4.0
-ipdb==0.11
+ipdb==0.12
