UniqTool and WcTool
Merge branch 'master' of https://github.com/azatris/cs4218

# By Mingxia Liu (2) and others
# Via Mingxia Liu (1) and dwalky (1)
* 'master' of https://github.com/azatris/cs4218:
  Correct MoveTool.java constructor error
  Delete duplicate in Shell.java
  Added our new test cases, started on SORTTool
  mabye this is working
  no message

Conflicts:
	test/sg/edu/nus/comp/cs4218/impl/extended2/UNIQToolTest.java
	test/sg/edu/nus/comp/cs4218/impl/extended2/WCToolTest.java