Add --tv to Makefile, disable outdated options and unneeded checkings

More improves... for https://groups.google.com/forum/#!topic/nemerle-en/xNrjBBqtoYE
* nant, nunit and wix are in ExternalDependences, so they not need to be installed
* bash or ksh is not required now, you can use zsh or other shells
* you can change tools version with --tv