Starting improvements for ESXi 5 builds
Minor fix to gpxe template for esxi 5

Just added the $http_port to the urls so it works on cobbler
systems that have modified that setting.
Added an ESXi 5 kickstart, based on a VMware KB
Minor template text change
Forgot to add the kernelopts line to the esxi5 bootcfg template
Merge pull request #448 from jimi1283/esxi_improvements

Esxi improvements
Fleshing out the esxi5 kickstart and tweaking snippets for it
Merge pull request #449 from jimi1283/esxi_improvements

Fleshing out the esxi5 kickstart and tweaking snippets for it
Added distro signature for Ubuntu 13.04 raring
Merge pull request #452 from jimi1283/miscimprovements

Added distro signature for Ubuntu 13.04 raring
Modification to pre_install_network_config to work with esxcfg-nics
Merge pull request #453 from jimi1283/esxi_improvements

Modification to pre_install_network_config to work with esxcfg-nics
Adding {g,i}PXE boot loaders to those being copied for tftp
Merge pull request #454 from jimi1283/miscimprovements

Adding {g,i}PXE boot loaders to those being copied for tftp
Some shells apparently don't like &> output redirects (ESXi 5.0)
Merge pull request #456 from jimi1283/esxi_improvements

Some shells apparently don't like &> output redirects (ESXi 5.0)
FEATURE - Add support for infiniband interfaces

Issue #444. This patch adds support for the infiniband MAC format,
though there may be more required to properly support the ib
interfaces.
Merge pull request #458 from jimi1283/issue_444

FEATURE - Add support for infiniband interfaces
Lots of fixes related to PXE booting ESXi profiles without systems:

* write template files for distros on a full sync
* add all settings variables to dictionary for templating pxe configs
* change img_path to local_img_path when it references the full path
  to the tftp root directory (ie. /var/lib/tftpboot/images) instead
  of what a tftp client would see (ie. /images/...)
* allow template files to be written into the tftp root directory, no
  longer restricting just to /var/www/cobbler/rendered
* minor fix to pxeprofile_esxi template
Normalizing some paths to make sure file writes are safe