Merge pull request #82 from bblacey/matplotlib-1.5

Upgraded Plot module to comply with matplotlib 1.5.x API

.travis.yml

@@ -38,6 +38,7 @@ before_install:
     - sudo apt-get install -y pyside-tools
     - sudo apt-get install -y python-dev
     - sudo apt-get install -y python-pyside
+    - sudo apt-get install -y python-matplotlib
     - sudo apt-get install -y qt4-dev-tools
     - sudo apt-get install -y qt4-qmake
     - sudo apt-get install -y shiboken

src/Mod/Plot/Plot.py

@@ -25,14 +25,19 @@
 
 import PySide
 from PySide import QtCore, QtGui
+from distutils.version import StrictVersion as V
 
 try:
     import matplotlib
     matplotlib.use('Qt4Agg')
     matplotlib.rcParams['backend.qt4']='PySide'
     import matplotlib.pyplot as plt
     from matplotlib.backends.backend_qt4agg import FigureCanvasQTAgg as FigureCanvas
-    from matplotlib.backends.backend_qt4agg import NavigationToolbar2QTAgg as NavigationToolbar
+    if V(matplotlib.__version__) < V("1.5.0"):
+       from matplotlib.backends.backend_qt4agg import NavigationToolbar2QTAgg as NavigationToolbar
+    else:
+       from matplotlib.backends.backend_qt4agg import NavigationToolbar2QT as NavigationToolbar
+
     from matplotlib.figure import Figure
 except ImportError:
     msg = PySide.QtGui.QApplication.translate(