Adding import and export
Typo
Improving via Structs + godocs
Adding test + minor refactoring
image: small improvement in tests
authors: add Aldrin Leal
image: improve docs

Use short URLs and include link in options structs.
Added CapAdd and CapDrop host config options from Docker 1.2
Add David Huie as an author
Merge pull request #145 from DavidHuie/cap

CapAdd and CapDrop host config options from Docker 1.2
Update tags for marshal/unmarshalling

Update tags for all structs that a user may want to marshal:
- add yaml tags everywhere
- update case to match Docker's format

Rename MaxRetry -> MaximumRetryCount for consistency with Docker.
all: fix links to docker remote API

Closes #147. Thanks @zachlatta.