Added sh_init and sh_free for given datastructure.

Samo Penic

2012-06-07 074a178761daa61a419ef9c2f38f9cd7adc0cdc7

/usr/share/automake-1.11/missing does not exist in tree d4c4f4a6e7c7cc0b9221a6e015d81f2f0eb552a7