[GEP-17] modify lambda validation of future support

The alternative lambda forms:

 func |$x| => {...}
 func {|$x|...}

should not be allowed.
This commit will ensure that when lambdas are allowed (currently only
by the future parser), then they must be in the form:

 func |$x| {...}
Modify geppetto-linux launcher w.r.t. commons-compress jar