Corrected some copy paste errors in SLES configuration.

- Corrected vm_name and output_dir regarding version and architecture.
- Made the syntax for vm_name uniform between VirtualBox and VMWare.
fix vmware-vmx tools install
Updated checksum and mirror to GA release
Added Solaris 11 support. Closes #213
Fix 'vmware-ovf' --> 'vmware-vmx'. Closes #230
Update RHEL7 checksums to GA version
Update RHEL 7 checksums to GA version
Merge pull request #221 from rickard-von-essen/sles_fix

Corrected some copy paste errors in SLES configuration.
Support CentOS 7.0
Merge pull request #237 from andytson/feature/centos-7.0

Support CentOS 7.0
Debian 7.5 -> 7.6

updated names, URLs and checksums
Merge pull request #239 from fadenb/debian_wheezy_7.6

Switch to newest Debian release (7.5 -> 7.6)