fixed the bug of  change level in a bundle .
fixed the bug of  change level in a bundle .
move to beta release in the nightly release, prepare for the stable release in  a week or two
fixed per Brian's suggestion
use gridUtil to calculate the altitude, this change will enable to calculate the altitude of WRF nc output
misc
fixed the bug in Brian's test result
allow color by parameter to be derived parameter
misc
major updates to test tcl script