Specify windows attributes in attribute files

This moves windows attributes back to the attribute file.
https://github.com/socrata/java/pull/95 moved these to the recipe,
however that prevents setting these attributes in a wrapper cookbook's
attribute file.

This ensures that only attributes which depend on jdk_version are set
in the recipe.  All other attributes are set in the attribute file like
normal.
Merge pull request #104 from blt04/fix-windows-attrs

Specify windows attributes in attribute files