Fixed `npm install` warning
Fixed `npm install` warning

npm WARN package.json gridster@0.6.9 homepage field must start with a protocol.

dsmorse/gridster.js,Firewall/gridster.js,zeroedin-bill/gridster.js,M0nter0/gridster.js,dsmorse/gridster.js,luke-browning/gridster.js,emartech/gridster.js,zeroedin-bill/gridster.js,zeroedin-bill/gridster.js,stenverbois/gridster.js,Firewall/gridster.js,Firewall/gridster.js,M0nter0/gridster.js,M0nter0/gridster.js,luke-browning/gridster.js,stenverbois/gridster.js,emartech/gridster.js,emartech/gridster.js,luke-browning/gridster.js,dsmorse/gridster.js,stenverbois/gridster.js