Travis ci quick fix (#474)
Travis ci quick fix (#474)

* just comment out cloning ndk

gomobile init downloads the ndk if it's not on the machine, doesn't it? If not I'll try to find a higher-level ndk repo or make my own.

* add to NDK version 16

Created my own repo that uses version 16 and link to that instead

EngoEngine/engo,EngoEngine/engo,paked/engi