install.sh: override if environment variables are available
install.sh: override if environment variables are available

Good for customizing the script for development environments.

cihangir/koding,acbodine/koding,alex-ionochkin/koding,acbodine/koding,koding/koding,jack89129/koding,andrewjcasal/koding,kwagdy/koding-1,rjeczalik/koding,andrewjcasal/koding,kwagdy/koding-1,koding/koding,acbodine/koding,cihangir/koding,alex-ionochkin/koding,andrewjcasal/koding,szkl/koding,sinan/koding,cihangir/koding,jack89129/koding,jack89129/koding,kwagdy/koding-1,kwagdy/koding-1,mertaytore/koding,rjeczalik/koding,sinan/koding,sinan/koding,usirin/koding,rjeczalik/koding,mertaytore/koding,acbodine/koding,gokmen/koding,gokmen/koding,koding/koding,koding/koding,rjeczalik/koding,kwagdy/koding-1,cihangir/koding,acbodine/koding,kwagdy/koding-1,koding/koding,cihangir/koding,drewsetski/koding,mertaytore/koding,drewsetski/koding,kwagdy/koding-1,acbodine/koding,alex-ionochkin/koding,andrewjcasal/koding,gokmen/koding,usirin/koding,koding/koding,andrewjcasal/koding,jack89129/koding,koding/koding,usirin/koding,acbodine/koding,andrewjcasal/koding,gokmen/koding,mertaytore/koding,alex-ionochkin/koding,usirin/koding,koding/koding,acbodine/koding,szkl/koding,mertaytore/koding,sinan/koding,cihangir/koding,usirin/koding,alex-ionochkin/koding,usirin/koding,rjeczalik/koding,usirin/koding,szkl/koding,mertaytore/koding,szkl/koding,gokmen/koding,kwagdy/koding-1,mertaytore/koding,usirin/koding,sinan/koding,jack89129/koding,jack89129/koding,drewsetski/koding,drewsetski/koding,cihangir/koding,drewsetski/koding,sinan/koding,sinan/koding,jack89129/koding,szkl/koding,szkl/koding,drewsetski/koding,alex-ionochkin/koding,andrewjcasal/koding,sinan/koding,gokmen/koding,rjeczalik/koding,drewsetski/koding,cihangir/koding,gokmen/koding,rjeczalik/koding,drewsetski/koding,alex-ionochkin/koding,mertaytore/koding,gokmen/koding,andrewjcasal/koding,szkl/koding,szkl/koding,jack89129/koding,rjeczalik/koding,alex-ionochkin/koding