Requirements bump

Leaving out jsonfield 1.03 until I can wrap my head around PostgreSQL issue:
rpkilby/jsonfield#57

requirements.dev.txt

@@ -1,25 +1,25 @@
 coverage==3.7.1
-django-nose==1.2
-flake8==2.1.0
-ipdb==0.7
-ipython==0.13
-nose==1.3.0
-wheel==0.23.0
+django-nose==1.4.1
+flake8==2.4.1
+ipdb==0.8.1
+ipython==4.0.0
+nose==1.3.7
+wheel==0.24.0
 
 # tox
 virtualenv==1.11.6
-py==1.4.23
-tox==1.7.2
+py==1.4.30
+tox==2.1.1
 
 # Sphinx
 MarkupSafe==0.23
-Jinja2==2.7.3
+Jinja2==2.8
 Pygments==2.0.2
-Sphinx==1.2.2
+Sphinx==1.3.1
 
 # qa-all
-check-manifest==0.23
-pyroma==1.7
+check-manifest==0.25
+pyroma==1.8.2
 
 # Google tools - not Python3 compat
 # transitfeed==1.2.14