Add 'remctl {hostname} puppet agent' command for neptr puppeting

Add remctl and xinetd modules to Puppetfile
Create profiles::tcc:remctl, which has remctl::acl and remctl::command for puppetagent, allow only neptr
Remove remctl package from package list, to manage via ::remctl
Add profile to TCC role
Merge pull request #5 from NMTCC/develwopr

Add 'remctl {hostname} puppet agent' command for neptr puppeting