overall whitespace & encoding fixes

patch from Matthias Schwarzott:
- use utf8 everywhere for files & file names

additionally by me:
- remove empty lines at the beginning of the files
- remove any control character (< 0x20) except \n and \t
- remove trailing whitespace
- exactly one newline at the end of the files
- remove junk from dvb-t/au-Melbourne-Upwey

dvb-s/IA7-129w

@@ -1,4 +1,4 @@
 # Intelsat Americas 7 @ 129W
 # freq pol sr fec
 
-S 11989000 H 02821000 AUTO
+S 11989000 H 02821000 AUTO