[FIX] btkGetAnalysis: Matlab crashed when the metadata ANALYSIS:VALUES is missing.
[FIX] btkGetAnalysis: Matlab crashed when the metadata ANALYSIS:VALUES is missing.

git-svn-id: ed06c97986a68fa016311908f99ed1538fbb9b5d@182 93be6e1e-6fcc-11de-baec-69240fdc299a

letaureau/b-tk.core,letaureau/b-tk.core,letaureau/b-tk.core,xyproto/b-tk.core,xyproto/b-tk.core,xyproto/b-tk.core,Biomechanical-ToolKit/BTKCore,Biomechanical-ToolKit/BTKCore,xyproto/b-tk.core,letaureau/b-tk.core,Biomechanical-ToolKit/BTKCore,letaureau/b-tk.core,letaureau/b-tk.core,xyproto/b-tk.core,Biomechanical-ToolKit/BTKCore,xyproto/b-tk.core,letaureau/b-tk.core,Biomechanical-ToolKit/BTKCore,xyproto/b-tk.core,xyproto/b-tk.core,Biomechanical-ToolKit/BTKCore,letaureau/b-tk.core,Biomechanical-ToolKit/BTKCore,Biomechanical-ToolKit/BTKCore