update the podspec for 0.4.0
update the podspec for 0.4.0

ernestopino/specta,jmoody/specta,alvinvarghese/specta,lmtim/specta,iguchunhui/specta,dbarden/specta,hanangellove/specta,rad3ks/specta,specta/specta,Lightricks/specta,mickeyreiss/specta,segiddins/specta,ExtremeMan/specta,PatrykKaczmarek/specta,adamkaplan/specta,wessmith/specta,Vungle/specta,Taptera/specta,flovilmart/specta,ShawnLeee/specta,iosdev-republicofapps/specta