Add ssh-agent to your bash start

Add ssh-agent to your bash start

Best way to  use ssh keys is to add them to SSH Agent, this will will allow you use ssh without needing to specify pasword for your SSH key all the time. 

To do this add these lines to you `.bash_profile` or `.profile`

```bash
SSHAGENT=/usr/bin/ssh-agent
SSHAGENTARGS="-s"
if [ -z "$SSH_AUTH_SOCK" -a -x "$SSHAGENT" ]; then
    eval `$SSHAGENT $SSHAGENTARGS`
    trap "kill $SSH_AGENT_PID" 0
fi
ssh-add ~/.ssh/id_rsa
```