ofxiOSKeybaord exposes UITextField
Merge pull request #3259 from julapy/ofxiOSKeyboard-expose-UITextField

ofxiOSKeybaord exposes UITextField
no longer calling ofReloadGLResources in ofxiOS

ofxiOS does not need to reload gl resources as the gl context is never
lost, even when an app goes into background state.
Merge pull request #3261 from julapy/ofReloadGLResources-remove

no longer calling ofReloadGLResources in ofxiOS