Updated GX to apply gravity consistently regardless of frame rate

Updated version

Updated about version

Updated to allow FileExists method to detect presence of http resourc…

…es. Updated LoadFont method to work with relative URLs.

fix vim cursor for themes with default dos font

Updated version to 0.8.2

Fixed error line detection caused by prior refactoring of IDE code.

Added support for _EnvironCount

Disabled beforeunload event when not in IDE mode (e.g. auto, play)

disable beforeunload event when in iframe