display_name constraints in package_branch.rb causes conflicts

[dayglojesus]

Uploading a pkg that shares a display_name attrib with a package in another branch, causes a conflict:

*** ERROR ***
1 error prohibited this package from being saved
There were problems with the following fields:
Package branch display name has already been taken

*** EXAMPLE ***
Branch A, Name: Silverlight

• empty branch, no packages
• this branch is the name that makepkginfo parses out by default

Branch B, Name: Microsoft_Silverlight

• contains multiple packages with display_name: Microsoft® Silverlight™ Browser Plug-In
• this branch's name was edited manually
• this branch name is referenced in all manifests and is the preferred name

Upload a New Package: Silverlight.dmg

• this package was downloaded directly from Microsoft
• makepkginfo determines
• display_name: Microsoft® Silverlight™ Browser Plug-In
• name: Silverlight

Upon upload, the package will produce an error because the constraints in package_branch.rb demand that all display_name attributes be unique across all branches. The conflicting display_name in the two different branches is not allowed.

The display_name attribute should be arbitrary.