Renamed that to cursorDiv in cursor size "set" invoker.
Preview containers are taken with selectors derived from their parents.
Some class names' corrections.
"+/-" are taken from message bundles.
Metric units are now part of i18n message bundles.
Merge remote-tracking branch 'chris/master' into GPII-153_GPII-187

Conflicts:
	src/pmt/html/PMTUIOptions.html
	src/shared/adjusters/html/UIOptionsTemplate-contrastNew.html
	src/shared/adjusters/html/UIOptionsTemplate-increaseSize.html
	src/shared/adjusters/js/ContrastAdjuster.js
	src/shared/adjusters/js/CursorSizeAdjuster.js
	src/shared/adjusters/js/MagnifierAdjuster.js
	src/shared/adjusters/js/TextSizeAdjuster.js
GPII-153, GPII-187: Renamed file names that have "uiOptions" in them.