We get a warning about having Matplotlib 1.1.1 instead of 1.1.0, but
I don't believe this monor version has introduced any incompatibilities.
--- a/scripts/make_2d_plots.py
+++ b/scripts/make_2d_plots.py
@@ -157,8 +157,8 @@
     matplotlib_version_info = tuple([int(i) for i in matplotlib_version if \
                             i.isdigit()])
 
-    if matplotlib_version_info != (1,1,0):
-        print "This code was only tested with Matplotlib-1.1.0"
+    if matplotlib_version_info[0:2] != (1,1):
+        print "This code was only tested with Matplotlib-1.1.x"
         
     data = {}
 
--- a/scripts/plot_taxa_summary.py
+++ b/scripts/plot_taxa_summary.py
@@ -180,8 +180,8 @@
     matplotlib_version_info = tuple([int(i) for i in matplotlib_version if \
                             i.isdigit()])
 
-    if matplotlib_version_info != (1,1,0):
-        print "This code was only tested with Matplotlib-1.1.0"
+    if matplotlib_version_info[0:2] != (1,1):
+        print "This code was only tested with Matplotlib-1.1.x"
 
     #get QIIME directory
     qiime_dir=get_qiime_project_dir()
