Merge pull request #17 from holys/update-travis

update travis

add vendor

fix ci

update go version to 1.9, 1.10

Merge pull request #16 from andrew-jones/master

Merge branch 'master' into master

Merge pull request #15 from bryant1410/master

Set font size for images smaller or larger than 128px

Fix broken Markdown headings

Merge pull request #13 from gernest/initials

Improve parsing of initials

update dependencies

use glide

improve golint