Do not search and set search results to empty when search term is blank
Relates to card #33 Scenario: Deleting all of the search criteria
Added tests for no search when search term is blank and
setting results to empty when search term is blank
Fixed code formatting and change from double to single quotes
Tidied code formatting and changed double quotes to single quotes
Merge pull request #47 from cathy-mcdonald/master

Changes to address Scenario: Deleting all of the search critiera from card 33