Update to commit 731eaf4 from git@github.com:x-team/wp-mentionable.git

Includes the following commit(s):

commit 731eaf428dd7e73c3494468177739bb09709b0b2
Author: Jonathan Bardo <jonathanbardo@users.noreply.github.com>

    Build status on master branch only

M	readme.md

commit cfb8cb1bd42ff6c06480495fd3d45a4cf2047104
Author: Shady Sharaf <shady@sharaf.me>

    Remove recent fix of readme.txt

M	readme.md
M	readme.txt

commit 2b641c5dc86e0978f585c6aeefff4f43c512db46
Author: Shady Sharaf <shady@sharaf.me>

    Update readme.txt numbering in Installation section

M	readme.md
M	readme.txt


git-svn-id: https://plugins.svn.wordpress.org/mentionable/trunk@816145 b8457f37-d9ea-0310-8a92-e5e31aec5664