Merge remote-tracking branch 'qatar/master'

Merge remote-tracking branch 'qatar/master'

* qatar/master:
  build: remove empty $(OBJS) target
  build: make rule for linking ff* apply only to these targets
  build: rearrange some lines in a more logical way
  s302m: fix resampling for 16 and 24bits.
  ARM: remove MUL64 and MAC64 inline asm
  build: clean up .PHONY lists
  build: move all (un)install* target aliases to toplevel Makefile
  flvenc: propagate error properly
  build: remove stale dependency
  build: do not add CFLAGS-yes to CFLAGS
  utils.c: fix crash with threading enabled.
  configure: simplify source_path setup
  configure: remove --source-path option
  lavf: deprecate AVFormatParameters.time_base.
  img2: add framerate private option.
  img2: add video_size private option.
  img2: add pixel_format private option.
  tty: add framerate private option.

Conflicts:
	Makefile
	configure

Merged-by: Michael Niedermayer <michaelni@gmx.at>