fill in connection
Merge branch 'master' into soln
add main soln
Merge branch 'master' into soln
Merge branch 'master' into soln

Conflicts:
	src/SocialNetwork.java
Merge branch 'master' into soln
Merge branch 'master' into soln
Merge branch 'master' into soln
Merge branch 'master' into soln
Merge branch 'master' into soln
Merge branch 'master' into soln
Merge branch 'master' into soln

Conflicts:
	src/Connection.java
	src/SocialNetwork.java
Merge branch 'master' into soln
undirected graph
optimize layout, try to get unicode working
try unicode vertex labeler...
Revert "try unicode vertex labeler..."

This reverts commit ea5120890ec6b093708f32beb71e04cf0b9ec56b.