Added one simple unit test for adding, unfinished

Added one simple unit test for adding, unfinished
Added one simple unit test for searching

Added one simple unit test for searching
Added one simple unit test for clearing all done

Added one simple unit test for clearing all done
Added one simple unit test for clearing all overdue

Added one simple unit test for clearing all overdue
Included my path to include directories

Included my path to include directories
update
Merge branch 'master' of https://github.com/cs2103aug2014-t14-3c/main

Conflicts:
	JustAddIt/JustAddIt/CmdDeleteItem.cpp
	JustAddIt/JustAddIt/CmdEditItem.cpp
	JustAddIt/JustAddIt/ItemBank.cpp
	JustAddIt/JustAddIt/ItemBank.h
Merge branch 'master' of https://github.com/cs2103aug2014-t14-3c/main

Conflicts:
	JustAddIt/JustAddIt/Item.cpp
	JustAddIt/JustAddIt/ItemBank.cpp
	JustAddIt/JustAddIt/ItemBank.h