Get Rid of nobuild, nolink, and alldeps (#2765)

* Removing the nobuild, nolink, and alldeps dependency types in favor of being explicit.
* This will help with maintenance going forward, as adding more dependency types won't affect existing declared dependencies in weird ways.
* default deptype is still `('build', 'link')`

var/spack/repos/builtin/packages/r-doparallel/package.py

@@ -35,5 +35,5 @@ class RDoparallel(RPackage):
 
     version('1.0.10', 'd9fbde8f315d98d055483ee3493c9b43')
 
-    depends_on('r-foreach', type=nolink)
-    depends_on('r-iterators', type=nolink)
+    depends_on('r-foreach', type=('build', 'run'))
+    depends_on('r-iterators', type=('build', 'run'))