Added insert method to linked list and test, passes
Added search method with test
Fixed recursive call in search function, exception raises correctly in test when node not in linked list
Fixed an error in test that was causing false positive
Finished delete function, first test working
Added tests for deleting node from empty list, and deleting node that wasnt head for list of size one
Merge pull request #1 from johnshiver/linked_list

Linked list