Replacing Caspa config with Common config

Signed-off-by: José Luis Di Biase <josx@interorganic.com.ar>
Set NODE_CONFIG_DIR if unset, so Caspa can run outside mbc-playout

Signed-off-by: Diego Gaustein <diego@gaustein.com.ar>
Merge pull request #113 from inaes-tic/replace-config

Replacing Caspa config with Common config