Merge pull request #54 from marcuslinke/master

Integration of @alexec changes
Upgraded from jersey-json to jackson-jaxrs 2.3.3
Merge pull request #58 from marcuslinke/master

Issue #51: Building an image - ADD for remote file URL fails
Merge pull request #55 from marcuslinke/jackson-jaxrs-2.3.3

Use jackson-jaxrs 2.3.3
Merge pull request #1 from kpelykh/master

Merge