fixed paths to demo python scripts

doc/opencv1/py/calib3d_camera_calibration_and_3d_reconstruction.rst

@@ -1436,7 +1436,7 @@ as occlusions.
 
 Here is how the function can be used:
 
-.. include:: /Users/vp/Projects/ocv/opencv/doc/python_fragments/findstereocorrespondence.py
+.. include:: ../../python_fragments/findstereocorrespondence.py
     :literal:
 
 

doc/opencv1/py/imgproc_feature_detection.rst

@@ -622,7 +622,7 @@ denotes a second image derivative.
 
 The corners can be found as local maximums of the function below:
 
-.. include:: /Users/vp/Projects/ocv/opencv/doc/python_fragments/precornerdetect.py
+.. include:: ../../python_fragments/precornerdetect.py
     :literal:
 
 

doc/opencv1/py/imgproc_histograms.rst

@@ -232,7 +232,7 @@ single-channel images. The elements of a tuple that is used to increment
 a histogram bin are taken at the same location from the corresponding
 input images.
 
-.. include:: /Users/vp/Projects/ocv/opencv/doc/python_fragments/calchist.py
+.. include:: ../../python_fragments/calchist.py
     :literal: