gidstorage get attachment method added
gidstorage get attachment tests added
gidstorage tests, with wrong gid status 400 is expected instead of 409.
gidstorage returns now the error bad request when a gid is wrong
gidstorage get tests, expecting wrong id -> fixed
gidstorage get returns wrong id -> fixed
Make gid tests more explicit by adding comments
gidstorage alldocs with complex query test, wrong response expected -> fixed