removed transfer log references and made slight improvements to main
screen. added listviews to add friend and send file activities. made
menu icons easier to see.
Merge branch 'pr/5'

Conflicts:
	res/layout/activity_add_friend.xml
	res/layout/activity_send_file.xml
	src/edu/temple/encryptedfiletransfer/HomeActivity.java
	src/edu/temple/encryptedfiletransfer/MainActivity.java