Remove extra `.git` extension for install
Remove extra `.git` extension for install

`go get` is finicky, and will give an error:

`package github.com/itsabot/abot.git: invalid version control suffix in github.com/ path`
itsabot/abot,itsabot/abot,DaleWebb/abot,ankitbansal82/abot,itsabot/abot,DaleWebb/abot,ankitbansal82/abot,DaleWebb/abot,DaleWebb/abot,itsabot/abot,ankitbansal82/abot,ankitbansal82/abot