#158 Compiling cinelerra 4.3

[lanride]

Missing library libva (video acceleration) in Makefile when compiling cinelerra 4.3 on Linux Mint prevents to compile it.
Workaround is adding it into Makefile in cinelerra subdirectory.Replace
$(LINKER) `cat $(OBJDIR)/objs`
with
$(LINKER) `cat $(OBJDIR)/objs` -lva