Merge pull request #208 from crawford/go

test: Fix tests for Go 1.3
travis: enable testing under go 1.3
Merge pull request #209 from marineam/go13

travis: enable testing under go 1.3
gofmt: sort
test: Add gofmt to test
Merge pull request #210 from crawford/test

test: Add gofmt to test
metadata: Refactor common parts out of ec2
networkd: Fix bug causing bonding to always be loaded
datasource: Add FetchNetworkConfig

FetchNetworkConfig is currently only used by ConfigDrive to read the
network config file from the disk.
network: Add support for multiple addresses and HW addresses

Logical Interfaces can be assigned a hardware address allowing them
to match on MAC address. The static config method also needs to
support specifying multiple addresses.
test: Refactor interface tests a little
Merge pull request #212 from crawford/metadata

refactor: Refactor metadata and datasources to be more testable
doc: clarify docs around write_files
squash: fix spacing
Merge pull request #214 from bcwaldon/clarify-write-files

doc: clarify docs around write_files
docs: fix broken link to fleet docs
Merge pull request #216 from robszumski/patch-2

docs: fix broken link to fleet docs
metadata: Merge the network config
network: Fall back to MAC address if there is no name
digitalocean: Add DigitalOcean metadata service

Move debian-related processing into its own file.