NXIO-81 Add an env resolver and a way to select the wanted resolver at runtime
NXIO-81 add README
NXIO-81 make watch key work
NXIO-81 format with go fmt
NXIO-81 register envs and domain only when information is complete
NXIO-81 load and watch in thread since call is blocker
NXIO-122: Reset domain reverse proxy when env values changed
NXIO-122: Add missing log import
NXIO-136 rename in gogeta
NXIO-135: Add status page redirection
Update README.md
NXIO-140: restrict status page redirection to iocontainers only