new data format for ant_on_air installs
refactor so context is passed in execute() and attributes are also processed lazily.  Looks like AntCall creates its own context so we can't assume a context until execute()
add more complexity to test to simulate what Ant needs to do to install FlexJS and Falcon
Add new steps needed by FlexJS and Falcon install
fix bugs in fileset classes
refactor the way tags pick up their attributes
rename test app to AntOnAIR and make it function more lke ant command line
add output that looks more like Ant output