[mythtv/f26] (7 commits) ...Update to 29.1

Summary of changes: b283f4e... fixes on update_fixes.sh and mythtv.spec cleanup (*) 86257c1... Rebuild for new libcdio and libvpx (*) f8e4612... Remove , from Requires (*) f286d7e... Fix conditionals for python-requests and python-requests-ca (*) de1a2d5... Various fixed and clean-up (*) 00bfb7a... Drop ldflags until it's sustainable upstream (*) ef973e5... Update to 29.1 (*) (*) This commit already existed in another branch; no separate mail sent