should not drop "10.10" from supported sdk version list
should not drop "10.10" from supported sdk version list

This should allow to use "10.10" sdk on Yosemite

katsuyoshi/RubyMotion,jjaffeux/RubyMotion,beni55/RubyMotion,incbee/RubyMotion,jjaffeux/RubyMotion,HipByte/RubyMotion,katsuyoshi/RubyMotion,jjaffeux/RubyMotion,katsuyoshi/RubyMotion,hboon/RubyMotion,incbee/RubyMotion,HipByte/RubyMotion,hboon/RubyMotion,incbee/RubyMotion,beni55/RubyMotion,katsuyoshi/RubyMotion,jjaffeux/RubyMotion,HipByte/RubyMotion,beni55/RubyMotion,incbee/RubyMotion,beni55/RubyMotion,hboon/RubyMotion