Update octicons

[zenorocha]

Right now, elemental uses v3.1.0 while the latest version of octicons is v3.5.0. Can we get this updated?

[jossmac]

Sounds good, would you mind submitting a PR?

[jacargentina]

@jossmac My PR #146 was just that (updating octicons to 3.5.0) but it was rejected by @mxstbr

I would love that rejection to be undone, and update octicons.

[mxstbr]

We can't merge the octicons update I'm afraid, see keystonejs/keystone#2508 (comment).

[jossmac]

@jacargentina octicons don't follow semver - @mxstbr rejected the PR at my request. Sorry mate, but we can't have icons suddenly disappearing from consumer's apps and websites.