Update contributors.txt (#592)
Update contributors.txt (#592)

* Allow -u option in test_package

Added -u option to the argument parser and use it in the install phase.

* Update contributors.txt

Added myself. :-)

luckielordie/conan,birsoyo/conan,lasote/conan,tivek/conan,memsharded/conan,birsoyo/conan,Xaltotun/conan,lasote/conan,memsharded/conan,conan-io/conan,conan-io/conan,Xaltotun/conan,luckielordie/conan,memsharded/conan,memsharded/conan,conan-io/conan,mropert/conan,mropert/conan,tivek/conan