Use providers.xml URL from config file, if there is an ProvidersUrl entry.
Use providers.xml URL from config file, if there is an ProvidersUrl entry.

svn path=/trunk/kdepim/; revision=167897

lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi