Enable SYSLINUX COMBOOT image support

This modification is needed for ESX 5.x to work with ipxe
Add Travis-CI build configuration

Added trivial .travis.yaml config file to have travic-ci.org build on commits
Change travis config

Try #2
Correct file type from .yaml to .yml

Correct typo in the file's extension
Remove misnamed travis configuration file

Deleted .travis.yaml file - left over from renaming
Add build pre-reqs to .travis.yml

Added pre-req installs to the build configuration file
Correct apt-get parameters in the build configuration file

Added 'install' to the apt-gets.  Doh!
Add genisoimage to the list of build dependencies

Added genisoimage to the list of build tools to be installed
Merge pull request #1 from ap1kenobi/fb/enable_syslinux

Enable SYSLINUX COMBOOT image support