use regexpmapper for copying .xtext files to bin

so that it works also on Windows

Change-Id: I0da741e167083547d6f436485ccfad95a07d4722
dep on org.objectweb.asm in tests

otherwise some types in FJ are not loaded correctly!

Change-Id: Ic0c9108748dbd5ed63092e3360c4f9c05fa43631
updated formatting tests for windows \r

Change-Id: If37bd8e09aeae71e72e64263e22f57016ba13f07
explicit UTF-8 encoding for Lambda mwe2

otherwise the wizard for Lambda would fail in Windows

Change-Id: I4c9be6dcf12def97e08e258b6f468645ff7f8af0
fixed size of lambda icon

Change-Id: Ifdf89a18b203969c5e861e36c978853d5f2aec2f
ant script and launch to run findbugs

Change-Id: Ibb3ae36a50658a2628ed5ef4d9517cf8ef5b79f9
headless generator moved to tests

since it is used only there

Change-Id: I84cdef4da909827a392b0c104548caed91fcbcac
removed some useless code

Change-Id: I857ef950211f7eea42ae0422849fded0529151f7
[issue 16]: generated Validator class is not valid if there's no system
package 

https://github.com/LorenzoBettini/xsemantics/issues/issue/16

Fixes #16

Change-Id: I723177d73a4a81289613652624fcaa5ab8e5bfe4