Ignore input lines starting with `#` (comments)
Ignore input lines starting with `#` (comments)

Readline (and thus rlwrap) has the ability to comment out the current
input line by pressing `esc` followed by `#`. However, kubectl-repl will
execute this as `kubectl #insert comment here` which shows the help
text. This updates the repl to ignore lines beginning with `#`.

Mikulas/kubectl-repl,Mikulas/kubectl-repl