bug fix: chains improperly selected in JSmol/HTML5
bug fix: JSmol/HTML5 not allowing drag-drop or file loading from a local drive.
bug fix: JSmol/HTML5 not allowing WRITE FILE ?
bug fix: platformSpeed persists but appears unreadable after loading a state
bug fix: JavaScript version InputStreamReader not processing non-UTF data correctly
bug fix: second reading of older PNG files with embedded script fails
due to improper png file caching
new feature: set drawFontSize // defaults to 14.0