Update node in travis, remove unsupported php
Update node in travis, remove unsupported php

Note: We specify CXX env because v8 requires a C++11 compiler

agusgarcia/sage9,ChrisLTD/sage,sacredwebsite/sage,c50/c50_roots,gkmurray/sage,PCHC/pharmacyresidency2017,levito/kleineweile-wp-theme,mckelvey/sage,mckelvey/sage,JulienMelissas/sage,levito/kleineweile-wp-theme,roots/sage,ptrckvzn/sage,teaguecnelson/tn-tellis-bds,teaguecnelson/tn-tellis-bds,agusgarcia/sage9,gkmurray/sage,JulienMelissas/sage,ChrisLTD/sage,ChrisLTD/sage,teaguecnelson/tn-tellis-bds,gkmurray/sage,skemantix/sage,c50/c50_roots,democracy-os-fr/sage,gkmurray/sage,agusgarcia/sage9,NicBeltramelli/sage,sacredwebsite/sage,skemantix/sage,ptrckvzn/sage,skemantix/sage,democracy-os-fr/sage,generoi/sage,JulienMelissas/sage,sacredwebsite/sage,kalenjohnson/sage,levito/kleineweile-wp-theme,mckelvey/sage,c50/c50_roots,roots/sage,kalenjohnson/sage,NicBeltramelli/sage,PCHC/pharmacyresidency2017,ptrckvzn/sage,democracy-os-fr/sage,generoi/sage,ChrisLTD/sage,NicBeltramelli/sage,generoi/sage,kalenjohnson/sage,PCHC/pharmacyresidency2017