Update README for cairo changes

README.md

@@ -8,15 +8,14 @@ language. It is currently developed on OS X and Linux.
 On OS X (homebrew):
 
     brew install https://raw.github.com/Homebrew/homebrew-versions/master/autoconf213.rb
-    brew install cairo
 
 On OS X (MacPorts):
 
-    sudo port install autoconf213 cairo +x11 +quartz
+    sudo port install autoconf213
     
 On Debian-based Linuxes:
 
-    sudo apt-get install libcairo2-dev libpango1.0-dev autoconf2.13 freeglut3-dev libtool
+    sudo apt-get install autoconf2.13 freeglut3-dev libtool
 
 Servo builds its own copy of Rust, so there is no need to provide a Rust
 compiler.
@@ -29,16 +28,3 @@ compiler.
     ../configure
     make check-servo && make
     ./servo ../src/test/hello.html
-
-
-## Build Workarounds
-
-### MacPorts
-
-Currently, the Makefile for the `rust-azure` submodule has hardcoded
-library paths that assumes cairo has been installed with homebrew or
-MacPorts. If you have installed cairo via another methods or a
-different version, you will need to change the library path.
-
-This problem should go away once Issue #40 is fixed, and an
-externally-built cairo is no longer needed.