Minor usability issue with tctl

tctl was doing configuration validation too early, even on "version"
command (which should always succeed)

Version bump

Also improved the error message for self-signed certificates
Fixes gravitational#511

Released 1.0.5

Released 1.0.4

Released 1.0.3

Admins can generate users certs

some minor fixes

test version update

test version update

Move to semver