Solve compile warnings

[Taure]

===> Analyzing applications...
/home/daniel/project/nova_project/routing_tree/src/routing_tree_parser.yrl: Warning: conflicts: 2 shift/reduce, 0 reduce/reduce
/home/daniel/project/nova_project/routing_tree/src/routing_tree_parser.yrl:none: Warning: conflicts: 2 shift/reduce, 0 reduce/reduce

===> Compiling routing_tree
src/routing_tree.erl:286:1: Warning: this clause cannot match because a previous clause at line 282 always matches
src/routing_tree.erl:290:1: Warning: function first/2 is unused

Today when we compile we get warnings.

[burbas]

Not sure why the parser have a conflict. Will take a look at that when I got time. The routing_tree-errors are just plain Erlang-warnings so that should be fairly easy to fix.