Update sshd.sh

Update to prevent centos and redhat delay during login of around 20 seconds on initial startup.   Does not happen if you already have the GSSAPI infrastructure setup correctly but most folks don't, and those who do will be able to re-configure this easily.  In other words, GSSAPI disabled by default.
Update to packer 0.5.1

packer fix on packer/*.json
0.4.1=>0.5.1 in .travis.yml
Merge pull request #150 from sc0ttruss/patch-1

Update sshd.sh
Merge pull request #152 from lwieske/master

Update to packer 0.5.1
Repair FreeBSD definitions after they got corrupted by a Packer bug. (https://github.com/mitchellh/packer/issues/784)
Update vmtools branch logic to reflect new providers in packer 0.5.1-

New providers in packer 0.5.1 are
- virtualbox-iso/ovf and
- vmware-iso/ovf
instead of the former „naked“ virtualbox and vmware.
Merge branch 'master' of https://github.com/lwieske/bento into lwieske-master
FreeBSD 10.0-RC4 support.
Don't "exit" at the end of the postinstall cleanup script.
Fixing outdated command in README

As of cfea16ba, the box type is 'virtualbox-iso' and 'vmware-iso' instead of the old 'virtualbox'/'vmware'. Updating the README to
reflect that.
Merge pull request #155 from apetresc/patch-1

Fixing outdated command in README
Don't disable selinux on Fedora; just make it Permissive.
Merge pull request #156 from juliandunn/fedora-selinux-permissive

Don't disable selinux on Fedora; just make it Permissive.
[BENTO-111] Added a .gitattributes and a note in README about Windows hosts
 * A .gitattributes was added to the repository to ensure ks.cfg, preseed.cfg
   and *.sh files have correct LF line endings and *.bat files have
   correct CRLF line endings.
 * Added a note about this in the README so people packaging boxes
   from Windows Hosts can fix the problem if they encounter it.
Tidy up some text in #111
support mirror variable for iso_url in all centos/vmware builders
Merge pull request #158 from adler/master

support mirror variable for iso_url in all centos/vmware builders
Updated to RELEASE from RC4.
Install all virtio kernel modules
Debian 7.3.0 support
 * updated iso url and checksum
 * Use new {virtualbox,vmware}-iso builder names (packer 0.5.0 change)