updated tutorial, finally got rid of the compilation scripts for the dependencies

tutorial/tutorial.md

@@ -157,6 +157,20 @@ A few examples in Chapter 5 requires the [CoMiSo
 solver](http://www.graphics.rwth-aachen.de/software/comiso) which has to be
 downloaded and compiled separately.
 
+Note for linux users: Many linux distributions do not include gcc and the basic development tools
+in their default installation. On Ubuntu, you need to install the following packages:
+
+```bash
+sudo apt-get install git
+sudo apt-get install build-essential
+sudo apt-get install cmake
+sudo apt-get install libx11-dev
+sudo apt-get install mesa-common-dev libgl1-mesa-dev libglu1-mesa-dev
+sudo apt-get install libxrandr-dev
+sudo apt-get install libxi-dev
+sudo apt-get install libxmu-dev
+```
+
 ## Mesh representation [meshrepresentation]
 
 libigl uses the [Eigen](http://eigen.tuxfamily.org/) library to encode vector