Bountysource support

Closes #289
Added support for wordpress plugin version, total downloads and rating.
Fix for wp dt.
Made route names more explicit and nested plugin under wordpress.

Added support for wordpress version compatibility.
Rounding plugin rating to 1 decimal place to match wordpress plugin repository.
Fix to strip alpha non-digit characters from wordpress version.
Updated download color thresholds.
Added wordpress functional examples in comments.

Added ‘ total’ to end of /wordpress/plugin/dt/ badgeText
Added ‘ tested’ to end of /wordpress/v/ badgeText to better reflect
meaning.
Wordpress: website examples

Also, comments.