Change bucket policy to enable deployment

see #52 for more information
Changed Keys to the shared keys
Merge pull request #54 from tfhartmann/master

Changed Keys to the shared keys
Create LICENSE.md
provide a listing of CentOS images
Merge branch 'master' of github.com:huit/nepho
Usage fix in README
Create LICENSE.md
Merge branch 'master' of https://github.com/huit/nepho

Conflicts:
	LICENSE.md
Merge branch 'master' of github.com:huit/nepho
refactor user data script snippets into separate files, to simplify management of these scripts.
Merge pull request #56 from robparrott/userdata-script-refactoring

Userdata script refactoring
allow CF template ref strings for the public_hostname variable.
add in a instance tag for its name, so it appears in the web console. Also remove some package defaults.
checking of bees-specific changes
get updated bees tempalte that doesn't wair for an ELB.
put pattern file in the wrong palce for bees
dont try to tag the launch config object
bug fix: get the reosurce name correct for Autoscale group launch config.
Merge branch 'master' of github.com:huit/nepho into bees