Update DisplayMessageActivity.java

Added code for getting the contents of a photo from a hard-coded path, and send it using the same functions as before. (Old codes are reserved)
Added dependencies for getting contents of a photo
Added functionality of getting a photo and display it
Updated the user interface to support multiline input
Updated user interface to support multiline input
Merge branch 'kwun' of https://github.com/qianxuweiren/M117_Anonymous_Comm into kwun
Merge branch 'kwun' of github.com:qianxuweiren/M117_Anonymous_Comm into kwun

Conflicts:
	bin/AnonyComm.apk
	bin/classes.dex
	bin/classes/com/ucla/anonycomm/DisplayMessageActivity$HTTPConn.class
	bin/classes/com/ucla/anonycomm/DisplayMessageActivity.class
	bin/classes/com/ucla/anonycomm/MainActivity.class
	bin/classes/com/ucla/anonycomm/R$id.class
	bin/classes/com/ucla/anonycomm/R$layout.class
	bin/classes/com/ucla/anonycomm/R$menu.class
	bin/classes/com/ucla/anonycomm/R$string.class
	bin/classes/com/ucla/anonycomm/ReceiveMessage$DummySectionFragment.class
	bin/resources.ap_
	gen/com/ucla/anonycomm/R.java
	res/layout/activity_display_message.xml
	res/layout/activity_main.xml
	res/menu/main.xml
	res/values/strings.xml
	src/com/ucla/anonycomm/DisplayMessageActivity.java
	src/com/ucla/anonycomm/MainActivity.java
add lib files