Yotta broken on Python 2 (?)

[wryun]

Or at least, on Ubuntu 16.04 LTS a simple pip install will no longer work unless one specifies an earlier semantic-version module. Simple fix:

https://github.com/rbarrois/python-semanticversion/commit/ea98f9fb7c76264df5e600ed597b79713e6cb2ce

(need to pin to <2.7.0)

Leads to great messages like:

~/microbit-simulated-dal$ yotta ls
error: 'Version' object has no attribute 'truncate'

[thegecko]

Likely. This repository has minimal maintenance, so package versions often become out of date. Please feel free to open a PR

[autopulated]

the SEMANTIC VERSIONING module made a breaking change without a major version bump 😭 😭 😭