Use OrderedCollections.jl and update to appveyor (#77)

Author: mauro3

REQUIRE

@@ -1,2 +1,2 @@
 julia 0.7
-DataStructures 0.8
+OrderedCollections 0.1

appveyor.yml

@@ -10,9 +10,9 @@ platform:
 
 ## uncomment the following lines to allow failures on nightly julia
 ## (tests will run but not make your overall status red)
-#matrix:
-#  allow_failures:
-#  - julia_version: latest
+matrix:
+ allow_failures:
+ - julia_version: latest
 
 branches:
   only:

src/Parameters.jl

@@ -42,7 +42,7 @@ c = BB.c
 """
 module Parameters
 import Base: @__doc__
-import DataStructures: OrderedDict
+import OrderedCollections: OrderedDict
 
 export @with_kw, @with_kw_noshow, type2dict, reconstruct, @unpack, @pack!