added feature test for creation of nested resources
added feature test for creation of nested resources

javierjulio/activeadmin,waymondo/active_admin,mauriciopasquier/active_admin,maysam/activeadmin,siutin/activeadmin,activeadmin/activeadmin,deivid-rodriguez/activeadmin,varyonic/activeadmin,gogovan/activeadmin,wspurgin/activeadmin,varyonic/activeadmin,maysam/activeadmin,activeadmin/activeadmin,javierjulio/activeadmin,mauriciopasquier/active_admin,siutin/activeadmin,cmunozgar/activeadmin,gogovan/activeadmin,cmunozgar/activeadmin,vytenis-s/activeadmin,waymondo/active_admin,mrjman/activeadmin,javierjulio/activeadmin,vraravam/activeadmin,cmunozgar/activeadmin,mrjman/activeadmin,wspurgin/activeadmin,varyonic/activeadmin,SoftSwiss/active_admin,deivid-rodriguez/activeadmin,vytenis-s/activeadmin,mrjman/activeadmin,vraravam/activeadmin,siutin/activeadmin,vytenis-s/activeadmin,waymondo/active_admin,activeadmin/activeadmin,mauriciopasquier/active_admin,gogovan/activeadmin,wspurgin/activeadmin,deivid-rodriguez/activeadmin,maysam/activeadmin,SoftSwiss/active_admin,vraravam/activeadmin,SoftSwiss/active_admin