* fixed segmented control golden test

* fixed segmented control golden test

* added cursorWidth, cursorRadius

* added default value for cursorWidth based on Apple specs

* test default cursorWidth

* removed cursorHeight stuff

* added functionality to keep cursor from blinking

* cursor width and radius is configurable + tests

* changed goldens repo version in goldens.version

* working version of configurable cursor (erased debugKeepCursorOn)

* minor changes

* docs

* changed textfield test that was failing due to new default cursorwidth

* added default value of cursorwidth in RenderEditable

* only run golden file tests on Mac

* cursor tests

* the tests are actually there now

* weak warning fixed

* switching to Linux

* changed default cursorWidth: 2.0 -> 1.0

* assorted changes, including changing text field test

* re-paint -> re-layout when changing cursorWidth