Handle JuliaProject.toml properly

repo2docker/buildpacks/julia/julia_project.py

@@ -21,6 +21,9 @@ class JuliaProjectTomlBuildPack(PythonBuildPack):
     @property
     def julia_version(self):
         default_julia_version = '1.1.0'
+        if os.path.exists(self.binder_path('JuliaProject.toml'):
+            project_toml = toml.load(self.binder_path('JuliaProject.toml'))
+        else:
             project_toml = toml.load(self.binder_path('Project.toml'))
         if 'compat' in project_toml:
             if 'julia' in project_toml['compat']: