Show testable summary after upload

[hugovk]

End the import with a line of text you can paste into Slack to see your newly imported emoji. For example:

Uploaded emojis: :angular: :babel: :backbone: :bootstrap: :bower: :browserify: :chrome: :css3: :cssnano: :electron: :ember: :firebase: :firefox: :frontendhappyhour: :git: :grunt: :gulp: :handlebars: :html5: :ie: :javascript: :jquery: :less: :nodejs: :npm: :opera: :polymer: :postcss: :react: :requirejs: :safari: :sass: :vim: :vue: :yeoman:

Fuller example:

$ emojipacks
Slack subdomain: <snip>
Email address login: <snip>
Password: *****************
Path or URL of Emoji yaml file: frontend.yaml
Starting import
Got tokens
Logged in
Upload crumb is s-1476095852-43793b85c6-?
Getting emoji page
Uploading angular with https://raw.githubusercontent.com/FrontEndHappyHour/frontend-slack-emojis/master/emojis/angular.p
ng
Uploading babel with https://raw.githubusercontent.com/FrontEndHappyHour/frontend-slack-emojis/master/emojis/babel.png
Uploading backbone with https://raw.githubusercontent.com/FrontEndHappyHour/frontend-slack-emojis/master/emojis/backbone
.png
Uploading bootstrap with https://raw.githubusercontent.com/FrontEndHappyHour/frontend-slack-emojis/master/emojis/bootstr
ap.png
Uploading bower with https://raw.githubusercontent.com/FrontEndHappyHour/frontend-slack-emojis/master/emojis/bower.png
Uploading browserify with https://raw.githubusercontent.com/FrontEndHappyHour/frontend-slack-emojis/master/emojis/browse
rify.png
Uploading chrome with https://raw.githubusercontent.com/FrontEndHappyHour/frontend-slack-emojis/master/emojis/chrome.png

Uploading css3 with https://raw.githubusercontent.com/FrontEndHappyHour/frontend-slack-emojis/master/emojis/css3.png
Uploading cssnano with https://raw.githubusercontent.com/FrontEndHappyHour/frontend-slack-emojis/master/emojis/cssnano.p
ng
Uploading electron with https://raw.githubusercontent.com/FrontEndHappyHour/frontend-slack-emojis/master/emojis/electron
.png
Uploading ember with https://raw.githubusercontent.com/FrontEndHappyHour/frontend-slack-emojis/master/emojis/ember.png
Uploading firebase with https://raw.githubusercontent.com/FrontEndHappyHour/frontend-slack-emojis/master/emojis/firebase
.png
Uploading firefox with https://raw.githubusercontent.com/FrontEndHappyHour/frontend-slack-emojis/master/emojis/firefox.p
ng
Uploading frontendhappyhour with https://raw.githubusercontent.com/FrontEndHappyHour/frontend-slack-emojis/master/emojis
/frontendhappyhour.png
Uploading git with https://raw.githubusercontent.com/FrontEndHappyHour/frontend-slack-emojis/master/emojis/git.png
Uploading grunt with https://raw.githubusercontent.com/FrontEndHappyHour/frontend-slack-emojis/master/emojis/grunt.png
Uploading gulp with https://raw.githubusercontent.com/FrontEndHappyHour/frontend-slack-emojis/master/emojis/gulp.png
Uploading handlebars with https://raw.githubusercontent.com/FrontEndHappyHour/frontend-slack-emojis/master/emojis/handle
bars.png
Uploading html5 with https://raw.githubusercontent.com/FrontEndHappyHour/frontend-slack-emojis/master/emojis/html5.png
Uploading ie with https://raw.githubusercontent.com/FrontEndHappyHour/frontend-slack-emojis/master/emojis/ie.png
Uploading javascript with https://raw.githubusercontent.com/FrontEndHappyHour/frontend-slack-emojis/master/emojis/javasc
ript.jpg
Uploading jquery with https://raw.githubusercontent.com/FrontEndHappyHour/frontend-slack-emojis/master/emojis/jquery.gif

Uploading less with https://raw.githubusercontent.com/FrontEndHappyHour/frontend-slack-emojis/master/emojis/less.png
Uploading nodejs with https://raw.githubusercontent.com/FrontEndHappyHour/frontend-slack-emojis/master/emojis/nodejs.png

Uploading npm with https://raw.githubusercontent.com/FrontEndHappyHour/frontend-slack-emojis/master/emojis/npm.png
Uploading opera with https://raw.githubusercontent.com/FrontEndHappyHour/frontend-slack-emojis/master/emojis/opera.png
Uploading polymer with https://raw.githubusercontent.com/FrontEndHappyHour/frontend-slack-emojis/master/emojis/polymer.p
ng
Uploading postcss with https://raw.githubusercontent.com/FrontEndHappyHour/frontend-slack-emojis/master/emojis/postcss.j
pg
Uploading react with https://raw.githubusercontent.com/FrontEndHappyHour/frontend-slack-emojis/master/emojis/react.png
Uploading requirejs with https://raw.githubusercontent.com/FrontEndHappyHour/frontend-slack-emojis/master/emojis/require
js.png
Uploading safari with https://raw.githubusercontent.com/FrontEndHappyHour/frontend-slack-emojis/master/emojis/safari.png

Uploading sass with https://raw.githubusercontent.com/FrontEndHappyHour/frontend-slack-emojis/master/emojis/sass.png
Uploading vim with https://raw.githubusercontent.com/FrontEndHappyHour/frontend-slack-emojis/master/emojis/vim.png
Uploading vue with https://raw.githubusercontent.com/FrontEndHappyHour/frontend-slack-emojis/master/emojis/vue.png
Uploading yeoman with https://raw.githubusercontent.com/FrontEndHappyHour/frontend-slack-emojis/master/emojis/yeoman.png

Uploaded emojis: :angular: :babel: :backbone: :bootstrap: :bower: :browserify: :chrome: :css3: :cssnano: :electron: :ember: :firebase: :firefox: :frontendhappyhour: :git: :grunt: :gulp: :handlebars: :html5: :ie: :javascript: :jquery: :less: :nodejs: :npm: :opera: :polymer: :postcss: :react: :requirejs: :safari: :sass: :vim: :vue: :yeoman:

Pasting that into Slack gives this, which actually reveals problems with some images (they were too big to import):

[zachfeldman]

This works!