other errors are legit

return errors other than ErrNoSuchImage
Tweaked help doc, ensured it won't import empty repo on pull - other fixes
Update Readme.md
Don't need this export
Merge remote-tracking branch 'michaelneale/develop' into develop
delegate pushing built bin
use the "official" go-dockerclient repo signature
Squashed 'vendor/go/src/github.com/fsouza/go-dockerclient/' content from commit 417fa16

git-subtree-dir: vendor/go/src/github.com/fsouza/go-dockerclient
git-subtree-split: 417fa166ee01ef3363c52fe3a3029486f3e7e704
Merge commit '5a8f0afbfde417e21f4eb6a53340fb8966e514e7' as 'vendor/go/src/github.com/fsouza/go-dockerclient'
Squashed 'vendor/go/src/code.google.com/p/gcfg/' content from commit c2d3050

git-subtree-dir: vendor/go/src/code.google.com/p/gcfg
git-subtree-split: c2d3050044d05357eaf6c3547249ba57c5e235cb
Merge commit '39d5b5e947779bae5218da27a88d59b8f977e0d0' as 'vendor/go/src/code.google.com/p/gcfg'
use inspect format
run with vendored code
print some more info
fix the build
allow specifying alternate tempdir
switch to mitchellh goamz, with my changes
Squashed 'vendor/go/src/github.com/mitchellh/goamz/' content from commit 590135a

git-subtree-dir: vendor/go/src/github.com/mitchellh/goamz
git-subtree-split: 590135a162c4e880d05504c03cf00261e7592f4c
Merge commit '566a46523001485636b2857ee3805f688e3e1309' as 'vendor/go/src/github.com/mitchellh/goamz'
add method for tagging images