Merge pull request #9 from CVL-GitHub/master

Chris merging from Jupiters computer after a reabase onto monash-merc/master
Merge pull request #10 from CVL-GitHub/master

Remove unused the file
more tidy up, making an easy-rsa-common role
Merge pull request #12 from l1ll1/more_cleanup

more tidy up, making an easy-rsa-common role
Merge pull request #11 from CVL-GitHub/master

Add more checks for copying client certificate
Add ntp and ldap client roles