Add more testcase for FirstWordSettingController

添加了新的测试用例，并且修改掉了测试出现的bug
fix the conflict
Commit again

刚才传出了conflict....
Add more testcases

给LetterPositionController 和 NumSettingController添加了更多测试用例
Merge remote-tracking branch 'origin/controller_branch'

Conflicts:
	src/controller/FirstWordSettingController.java
	src/controller/test/TestFirstWordSettingController.java
	src/controller/test/TestNumSettingController.java