Bug#841587: node-livescript must build-depend on livescript

[Adrian Bunk]

Control: retitle -1 node-livescript must build-depend on livescript

This is a compiler that seems to require itself for building,
adding livescript to the build dependencies fixes the build
for me.

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed