Removed DSL, ISDN, Modem, Provider modules and headers
Adapted Makefile(s)
Adapted testsuite
Removed clients
Removed references to DSL/ISDN/Provider/Modem from sources.
Removed "data" dir (it was related to Modem module)
Removed desktop files
Updated Makefile
Updated spec
Updated changelog
Updated changelog
Merge pull request #131 from mchf/fate-remove-deprecated

Remove deprecated DSL / ISDN / Modem configuration support