scal-json-c/droplet
 - droplet is now compatible with scal-json-c and stock json-c. For scality, usage of scal-json-c is mandatory
 - scal-json-c shall be build first
 - droplet sourcetree configuration is done as follow
{{{
./configure --with-json-c-include-dir=$PWD/../../../scal-json-c/trunk/ --with-json-c-lib=$PWD/../../../scal-json-c/trunk/.libs/libscaljson.a
}}}