release 1.2.1

update version

Merge pull request ipfs-shipyard#38 from celeduc/depmgmt

Version 1.1.1 for maven support

Add ability to add a dir (only empty works until multiple multipart e…

…lements are supported by ipfs.

Merge pull request ipfs-shipyard#18 from celeduc/mavenize

Mavenize

Updated ipfs.add to support adding directories recursively

Tested against different ipfs versions and lowered minimum version re…

…quired.

Updated to IPFS 0.4.2 API

Reinstated Makefile so we don't force people to use maven.

Fixed access for IPFS inner classes