Documentation update.

1.  Corrected a minor grammar error.
2.  Added missing documentation.
Issue 3 fix.

Date:               15 August 2014
Details:            Quandl's search API returns invalid source data. The
                    initial query that determines if any search results
                    have been returned from the chosen 'filter' value
                    makes use of the converted 'source' nodes. This data
                    has subsequently proven unreliable. At the time of
                    writing it does not include the names of all sources
                    of search results, and it misreports the number of
                    search results from those sources it does include.
File:               search_quandl.m
Line:               162 - 175
Branch:             Master
Priority:           Critical
Resolved:           15 August 2014
Issue 4 fix.

Date:               15 August 2014
Details:            Whenever a 'filter' value is specified, SEARCH_QUANDL
                    attempts to return 'count' search results from the
                    selected data feed. In the case where Quandl has less
                    than 'count' search results from the feed available,
                    this will result in every single search result being
                    processed.
File:               search_quandl.m
Line:               190
Branch:             Master
Priority:           High
Resolved:           15 August 2014
Code and documentation update.

1.  Added GET_DATA_GOOGLE to the list of BSD 2-clause licensed files.
2.  Added a missing make script statement.
GET_DATA_QUANDL added.

1.  Added the function GET_DATA_QUANDL.
2.  Added the test unit TEST_GET_DATA_QUANDL.
3.  Added the script MAKE_GET_DATA_QUANDL.
4.  Added the test unit reference data.