incorrect version for latest 3.0.3 release

[justinpjose]

certmgr version is showing the version v3.0.1-15-gec8c2be instead of v3.0.3

FYI, using certmgr-linux-amd64-v3.0.3.tar.gz

[ChrisChoke]

they get the version from git describe from here for the building process:

https://github.com/cloudflare/certmgr/blob/4af0d7701d7500080ddc53bebb9c3d85977df3e4/.travis.yml#L18

it seems that the tag of 3.0.2 and 3.0.3 are lightweight tags. so that git describe will refer to the last annotated tag which ist version 3.0.1. i think git describe --tags will solve this for the future building processes.

Chris