Add c-ares 1.1.1

Add c-ares library for async DNS resolving on Android because the
pthreads implementation randomly freezes when there's no internet
connection (there's still a bug: the c-ares version freezes when the
quit button is pressed)
Add Android configs for c-ares and cURL

Ignore the previous commit message, it's 1.10.0 actually, not 1.1.1.
Remove TOUCH_CANCEL touch event

Since TOUCH_CANCEL is handled everywhere as TOUCH_UP, it's redundant
mingw
Merge pull request #114 from stopiccot/mingw

Initial mingw support for cmake.