dnscrypt-proxy v1 is included with the current davidc502 builds. the wiki is for the dnscrypt-proxy v2. information on difference between the two can be found here, https://github.com/jedisct1/dnscrypt-proxy/wiki/Differences-to-v1
there is active development with the v2 and the latest binary is 2.0.15. i have 2.0.14 installed on an extra router that i'm using as a travel vpn router and it's stable and working great. i will update to 2.0.15 or later when i'm not as busy.