Adding ex01 example without moose source

examples/ex01_inputfile/diffusion_pathological.i

+[Mesh]
+  file = square.e
+  uniform_refine = 4
+[]
+
+# Note: This output block is out of its normal place (should be at the bottom)
+[Outputs]
+  execute_on = 'timestep_end'
+  exodus = true
+[]
+
+# Note: The executioner is out of its normal place (should be just about the output block)
+[Executioner]
+  type = Steady
+  solve_type = 'PJFNK'
+[]
+
+[Variables]
+  active = 'diffused'   # Note the active list here
+  [./diffused]
+    order = FIRST
+    family = LAGRANGE
+  [../]
+
+# This variable is not active in the list above
+# therefore it is not used in the simulation
+  [./convected]
+    order = FIRST
+    family = LAGRANGE
+  [../]
+[]
+
+[Kernels]
+  [./diff]
+    type = Diffusion
+    variable = diffused
+  [../]
+[]
+
+# This example applies DirichletBCs to all four sides of our square domain
+[BCs]
+  [./left]
+    type = DirichletBC
+    variable = diffused
+    boundary = '1'
+    value = 0
+  [../]
+
+  [./right]
+    type = DirichletBC
+    variable = diffused
+    boundary = '2'
+    value = 1
+  [../]
+[]

examples/ex01_inputfile/ex01.i

+[Mesh]
+  file = mug.e
+[]
+
+[Variables]
+  [./diffused]
+    order = FIRST
+    family = LAGRANGE
+  [../]
+[]
+
+[Kernels]
+  [./diff]
+    type = Diffusion
+    variable = diffused
+  [../]
+[]
+
+[BCs]
+  [./bottom]
+    type = DirichletBC
+    variable = diffused
+    boundary = 'bottom'
+    value = 1
+  [../]
+
+  [./top]
+    type = DirichletBC
+    variable = diffused
+    boundary = 'top'
+    value = 0
+  [../]
+[]
+
+[Executioner]
+  type = Steady
+  solve_type = 'PJFNK'
+[]
+
+[Outputs]
+  execute_on = 'timestep_end'
+  exodus = true
+[]