embed api demo
Darkly: new theme

https://github.com/thomaspark/bootswatch/pull/233
Merge pull request #233 from jenil27/dev

Darkly: new theme.
darkly: tweaks
flatly: tweaks
add darkly to site
update index alert for darkly announcement
fix font-size in cosmo, flatly & darkly

Fixes https://github.com/thomaspark/bootswatch/issues/234
Merge pull request #235 from jenil27/gh-pages

fix font-size in cosmo, flatly & darkly
Fix navbar button height
Merge pull request #236 from instabledesign/gh-pages

Fix navbar button height
include darkly in composer.json
remove shamrock
add eloquent javascript book
update wrapbootstrap recommendations
remove darkly announcement
lumen: lighten panel shadow
add progress bar with label to test page
fix navbar toggle in test
cerulean: change navbar dropdown-header to white, fixes #237