Code and documentation update.

1.  Corrected and expanded the description of the 'start' and 'finish'
    name-value pair arguments.
2.  Corrected a series of minor, taxonomy-related code errors.
Issue 1 fix.

Date:               30 July 2014
Details:            When passed an empty DOM node (ie one that contains no
                    search results), CONVERT_QUANDL fails to assign a value
                    to the structure 's'. This occurs when the 'docs' node
                    becomes the parent, and no child nodes are found.
File:               convert_quandl.m
Line:               69
Branch:             Master
Priority:           Critical
Resolved:           30 July 2014
Code update.

1.  Added a new test function to the TEST_CONVERT_QUANDL test unit to
    verify the issue 1 fix.
2.  Added the script MAKE_CONVERT_QUANDL.
3.  Modified the name of the file used to produce test function actual
    data. It now includes the number of the test function in which the
    file is used.
4.  Added a second test function actual data file.
5.  Updated the test unit reference data.
SEARCH_QUANDL added.

1.  Added the function SEARCH_QUANDL.
2.  Added the test unit TEST_SEARCH_QUANDL.
3.  Added the script MAKE_SEARCH_QUANDL.
4.  Added the test unit reference data.
Code update.

1.  Removed the path commands from MAKE_CONVERT_QUANDL so that it matches
    the other make scripts.
Issue 2 fix.

Date:               31 July 2014
Details:            Because individual test units clear all variables from
                    the MATLAB workspace, the global Quandl authentication
                    token entered by the user prior to running TEST_SUITE
                    is deleted. This causes test functions that use the
                    authentication token to fail.
File:               test_get_data_yahoo.m
                    test_convert_quandl.m
                    test_search_quandl.m
Line:               298
                    93
                    210
Branch:             Master
Priority:           High
Resolved:           31 July 2014
MAKE_SUITE added.

1.  Added the script MAKE_SUITE.
2.  Modified the individual make scripts so that they clear all workspace
    variables except the global Quandl authentication token entered by the
    user.