replacing umlaute and fixing address in headers Haldeneggsteig -> Universitaetsstrasse

Signed-off-by: Reto Achermann <reto.achermann@inf.ethz.ch>

Removing Windows newlines.

Signed-off-by: Adam Turowski <adam.turowski@inf.ethz.ch>

Refactored libcollections.a to prefix all exported functions and data
types with collections_ to prevent namespace pollution. Many
application programs have their own functions named list_* and hash_*
(e.g. PostgreSQL).

Initial version of public stable barrelfish repository.