playground/client: Determine backend address from client address.

Backend host is obtained from client host by replacing 'playground'
with 'pgapi'.
Disabled backend redirect by pgaddr parameter except for localhost
clients.

Change-Id: I3bf35139ffd636f0c30d7c96792ef9704a9442c3
1 file changed
tree: d9e30382a5e00eb4b29734b7132fb871910fadd1
  1. client/
  2. go/
  3. pgbundle/
  4. .gitignore