Merge pull request #93 from rjleveque/run_tests

remove examples/run_tests.py and point to new common script in clawutil

Author: rjleveque

examples/README.txt

@@ -1,22 +1,23 @@
 This directory contains a few examples to get users started using
 this software.  In most directories you should be able to type:
     make all
-and the code should run and a set of plots produced.  However, see the
-individual README files in the directories.
+and the code should run and a set of plots produced.  
 
-The examples in this directory can also be used as regression tests.
-Each example is run and the set of plots are then compared with those
-archived in the gallery that can be found online in the documentation.
-For this to work you need to first clone and/or
-fetch a zip file of the latest gallery results from
-     git://github.com/clawpack/clawpack.github.com
-Put this in the top $CLAW directory so that there is a subdirectory
-$CLAW/clawpack.github.com.
+However, see the individual README files in the directories.
 
-To run all tests:
-    python run_tests.py
+To run all examples in all subdirectories:
+    python $CLAW/clawutil/src/python/clawutil/run_examples.py
+You might want to first check your environment variables, or you can set
+them explicitly by modifying the script.
 
-It may take some time for these examples to all run.
+In addition to doing `make all`, this script also runs any Jupyter notebooks
+found in the subdirectories.
+
+It may take some time for these examples to all run. Two files 
+    make_all_output.txt
+    make_all_errors.txt
+will be created that contain the output normally sent to the screen and any
+error messages from running the examples.
 
 A quicker set of tests can be run from the classic/tests directory.  See the
 README file in that directory.