Two more badges.
Omit needless SVG file.
Add ‘dependencies out of date’ badge
Write to svg files async-ly.
Specify that the unit is pixels (if unspecified)
[badge] Build pending.
[badge] Build failing.
[badge] Build unknown.
[badge] Build error.
README: Fix typo
Add more color schemes

Ref. #8.
Badge "dependencies out of date": larger size.
Light grey color scheme.
[badge] Dependencies update / unkown.
[badge] Dependencies up-to-date.
Size update to "dependencies up-to-date".
Automatic measurement of text.
Bring text 1px closer to center.

As shown in Shields.io's proportions picture: <https://github.com/gittip/shields.io/blob/c94dec377cfb685ce09695096aa719e9220f262e/static/proportions.png>.
Omit needless widths.
Single color input.