changed ip-ip column of ip_pool_show to read 'Options', and added 'nat-outgoing' as a possible row value
changed ip-ip column of ip_pool_show to read 'Options', and added 'nat-outgoing' as a possible row value


Former-commit-id: bccdba6a6537246e07a0e2dbb2a8848a1c4d904d
L-MA/libcalico,TrimBiggs/libnetwork-plugin,tomdee/libnetwork-plugin,caseydavenport/libcalico,djosborne/libcalico,plwhite/libcalico,tomdee/libcalico,alexhersh/libcalico,projectcalico/libnetwork-plugin,Symmetric/libcalico,TrimBiggs/libnetwork-plugin,projectcalico/libcalico,robbrockbank/libcalico,insequent/libcalico,TrimBiggs/libcalico