examActivity onlisten and expandablelist
Merge branch 'master' of https://github.com/chenshifei/GREWords

Conflicts:
	GREWords/res/layout/activity_config.xml
	GREWords/res/layout/activity_exam.xml
	GREWords/res/layout/activity_intel_wordlist.xml
	GREWords/res/layout/intellist_group.xml
	GREWords/src/com/tac/grewords/view/MainActivity.java
	GREWords/src/com/tac/grewords/view/MyExpansiableListActivity.java
	GREWords/src/com/tac/grewords/view/configActivity.java
	GREWords/src/com/tac/grewords/view/examActivity.java