remove warp deprecated warning

devel.hs:15:11: Warning:
    In the use of `settingsPort'
		    (imported from Network.Wai.Handler.Warp, but defined in
					warp-2.1.5.1:Network.Wai.Handler.Warp.Settings):
							    Deprecated: "Use setPort instead"
											Starting devel application
relax transformers cabal constraints upper bounds
fix copyright year

2013      ->
2013-2014
    ^^^^^
Merge branch 'remove-warp-warning'