Merge pull request #13 from milneti/master

Pull from Master
Transaction page sequence
Added image files / color xml file / updated GUI / logout button

	new file:   PayBack/payback-web.png
	new file:   PayBack/res/drawable-hdpi/activitybackground.png
	new file:   PayBack/res/drawable-hdpi/payback.png
	new file:   PayBack/res/drawable-mdpi/activitybackground.png
	new file:   PayBack/res/drawable-mdpi/payback.png
	new file:   PayBack/res/drawable-xhdpi/activitybackground.png
	new file:   PayBack/res/drawable-xhdpi/payback.png
	new file:   PayBack/res/drawable-xxhdpi/activitybackground.png
	new file:   PayBack/res/drawable-xxhdpi/payback.png
	new file:   PayBack/res/values/color.xml
	modified:   PayBack/AndroidManifest.xml
	modified:   PayBack/project.properties
	modified:   PayBack/res/layout/activity_contact.xml
	modified:   PayBack/res/layout/activity_login.xml
	modified:   PayBack/res/layout/activity_main.xml
	modified:   PayBack/res/layout/activity_manage_group.xml
	modified:   PayBack/res/layout/activity_notification.xml
	modified:   PayBack/res/layout/activity_resolve_transaction.xml
	modified:   PayBack/res/layout/activity_transaction1.xml
	modified:   PayBack/res/layout/activity_transaction2.xml
	modified:   PayBack/res/layout/activity_transaction3.xml
	modified:   PayBack/res/layout/activity_transaction4.xml
	modified:   PayBack/res/layout/activity_transaction5.xml
	modified:   PayBack/res/values/styles.xml
	modified:   PayBack/src/com/example/payback/MainActivity.java
	modified:   PayBack/src/com/example/payback/Transaction1Activity.java
	modified:   PayBack/src/com/example/payback/Transaction5Activity.java
updates to GUI / logout button
Merge pull request #15 from milneti/GUI

GUI