New section - utrecht amsterdam
Delete openETCSArchitectureAndDesignSpecification.synctex.gz
Delete openETCSArchitectureAndDesignSpecification.pdf

File clashes with pull request
Merge pull request #49 from BerndHekele/master

Chosen Version changed back to 3.3.0.
New documents on architecture - second iteration
First version of balise channel test model uploaded.
(by Martina K.)