iosbuild.sh: allow for out of tree builds
iosbuild.sh: allow for out of tree builds

Change-Id: Id89ed4a4153dd6e02380c4b8ae8ad6c1f8d21944

ShiftMediaProject/libvpx,shacklettbp/aom,gshORTON/webm.libvpx,smarter/aom,kalli123/webm.libvpx,Maria1099/webm.libvpx,Distrotech/libvpx,jacklicn/webm.libvpx,mwgoldsmith/libvpx,Distrotech/libvpx,liqianggao/libvpx,matanbs/vp982,shacklettbp/aom,shyamalschandra/libvpx,matanbs/vp982,liqianggao/libvpx,pcwalton/libvpx,lyx2014/libvpx_c,shareefalis/libvpx,ittiamvpx/libvpx-1,mbebenita/aom,ittiamvpx/libvpx-1,jacklicn/webm.libvpx,jmvalin/aom,abwiz0086/webm.libvpx,altogother/webm.libvpx,Maria1099/webm.libvpx,VTCSecureLLC/libvpx,webmproject/libvpx,hsueceumd/test_hui,charup/https---github.com-webmproject-libvpx-,Distrotech/libvpx,openpeer/libvpx_new,VTCSecureLLC/libvpx,webmproject/libvpx,hsueceumd/test_hui,Laknot/libvpx,matanbs/vp982,abwiz0086/webm.libvpx,altogother/webm.libvpx,mbebenita/aom,shacklettbp/aom,iniwf/webm.libvpx,kim42083/webm.libvpx,zofuthan/libvpx,openpeer/libvpx_new,stewnorriss/libvpx,pcwalton/libvpx,matanbs/webm.libvpx,Laknot/libvpx,kleopatra999/webm.libvpx,Maria1099/webm.libvpx,GrokImageCompression/aom,shyamalschandra/libvpx,kim42083/webm.libvpx,Suvarna1488/webm.libvpx,running770/libvpx,jacklicn/webm.libvpx,kalli123/webm.libvpx,reimaginemedia/webm.libvpx,altogother/webm.libvpx,kim42083/webm.libvpx,webmproject/libvpx,iniwf/webm.libvpx,GrokImageCompression/aom,ittiamvpx/libvpx-1,jmvalin/aom,thdav/aom,matanbs/vp982,pcwalton/libvpx,jmvalin/aom,altogother/webm.libvpx,Acidburn0zzz/webm.libvpx,openpeer/libvpx_new,goodleixiao/vpx,kleopatra999/webm.libvpx,pcwalton/libvpx,Acidburn0zzz/webm.libvpx,goodleixiao/vpx,openpeer/libvpx_new,kalli123/webm.libvpx,GrokImageCompression/aom,mwgoldsmith/vpx,mwgoldsmith/libvpx,Laknot/libvpx,reimaginemedia/webm.libvpx,Topopiccione/libvpx,lyx2014/libvpx_c,felipebetancur/libvpx,gshORTON/webm.libvpx,jmvalin/aom,matanbs/vp982,abwiz0086/webm.libvpx,shareefalis/libvpx,kleopatra999/webm.libvpx,mwgoldsmith/libvpx,Acidburn0zzz/webm.libvpx,thdav/aom,jmvalin/aom,liqianggao/libvpx,pcwalton/libvpx,thdav/aom,Topopiccione/libvpx,ittiamvpx/libvpx-1,matanbs/webm.libvpx,zofuthan/libvpx,stewnorriss/libvpx,shyamalschandra/libvpx,gshORTON/webm.libvpx,mwgoldsmith/libvpx,GrokImageCompression/aom,Laknot/libvpx,reimaginemedia/webm.libvpx,jdm/libvpx,openpeer/libvpx_new,felipebetancur/libvpx,jacklicn/webm.libvpx,gshORTON/webm.libvpx,matanbs/vp982,VTCSecureLLC/libvpx,stewnorriss/libvpx,kalli123/webm.libvpx,hsueceumd/test_hui,shareefalis/libvpx,jacklicn/webm.libvpx,Distrotech/libvpx,smarter/aom,mwgoldsmith/libvpx,reimaginemedia/webm.libvpx,charup/https---github.com-webmproject-libvpx-,mbebenita/aom,shyamalschandra/libvpx,liqianggao/libvpx,running770/libvpx,liqianggao/libvpx,thdav/aom,VTCSecureLLC/libvpx,mbebenita/aom,hsueceumd/test_hui,ShiftMediaProject/libvpx,felipebetancur/libvpx,running770/libvpx,kleopatra999/webm.libvpx,jdm/libvpx,stewnorriss/libvpx,luctrudeau/aom,jmvalin/aom,shacklettbp/aom,shareefalis/libvpx,kalli123/webm.libvpx,openpeer/libvpx_new,gshORTON/webm.libvpx,iniwf/webm.libvpx,charup/https---github.com-webmproject-libvpx-,jdm/libvpx,lyx2014/libvpx_c,lyx2014/libvpx_c,Topopiccione/libvpx,luctrudeau/aom,mwgoldsmith/vpx,ShiftMediaProject/libvpx,running770/libvpx,ittiamvpx/libvpx-1,smarter/aom,charup/https---github.com-webmproject-libvpx-,iniwf/webm.libvpx,webmproject/libvpx,luctrudeau/aom,shacklettbp/aom,iniwf/webm.libvpx,Suvarna1488/webm.libvpx,altogother/webm.libvpx,luctrudeau/aom,Acidburn0zzz/webm.libvpx,matanbs/webm.libvpx,lyx2014/libvpx_c,webmproject/libvpx,Acidburn0zzz/webm.libvpx,ittiamvpx/libvpx-1,mbebenita/aom,lyx2014/libvpx_c,stewnorriss/libvpx,zofuthan/libvpx,Maria1099/webm.libvpx,jdm/libvpx,smarter/aom,kim42083/webm.libvpx,matanbs/vp982,smarter/aom,Acidburn0zzz/webm.libvpx,gshORTON/webm.libvpx,goodleixiao/vpx,matanbs/webm.libvpx,mwgoldsmith/vpx,mbebenita/aom,smarter/aom,Suvarna1488/webm.libvpx,liqianggao/libvpx,shacklettbp/aom,pcwalton/libvpx,thdav/aom,GrokImageCompression/aom,hsueceumd/test_hui,mwgoldsmith/vpx,abwiz0086/webm.libvpx,zofuthan/libvpx,shareefalis/libvpx,iniwf/webm.libvpx,charup/https---github.com-webmproject-libvpx-,Laknot/libvpx,mwgoldsmith/vpx,ShiftMediaProject/libvpx,matanbs/webm.libvpx,VTCSecureLLC/libvpx,goodleixiao/vpx,Suvarna1488/webm.libvpx,Distrotech/libvpx,jdm/libvpx,altogother/webm.libvpx,matanbs/webm.libvpx,goodleixiao/vpx,mbebenita/aom,reimaginemedia/webm.libvpx,kim42083/webm.libvpx,stewnorriss/libvpx,kleopatra999/webm.libvpx,zofuthan/libvpx,abwiz0086/webm.libvpx,mwgoldsmith/libvpx,Maria1099/webm.libvpx,mbebenita/aom,kim42083/webm.libvpx,hsueceumd/test_hui,felipebetancur/libvpx,webmproject/libvpx,mwgoldsmith/vpx,Distrotech/libvpx,Maria1099/webm.libvpx,running770/libvpx,felipebetancur/libvpx,charup/https---github.com-webmproject-libvpx-,VTCSecureLLC/libvpx,reimaginemedia/webm.libvpx,kalli123/webm.libvpx,Suvarna1488/webm.libvpx,abwiz0086/webm.libvpx,zofuthan/libvpx,thdav/aom,Laknot/libvpx,Topopiccione/libvpx,jacklicn/webm.libvpx,running770/libvpx,Topopiccione/libvpx,jdm/libvpx,GrokImageCompression/aom,shareefalis/libvpx,Suvarna1488/webm.libvpx,luctrudeau/aom,Topopiccione/libvpx,shyamalschandra/libvpx,shyamalschandra/libvpx,kleopatra999/webm.libvpx,goodleixiao/vpx,luctrudeau/aom,mbebenita/aom,felipebetancur/libvpx,ShiftMediaProject/libvpx