LUCY-169 Remove exe files properly.
LUCY-169 Remove exe files properly.

Some files were being cleaned up under Unix but not under Windows, because the
removal routine left off the executable extension.


git-svn-id: 0e6074679e66e8f1cc73dfc755b08bab367f805b@1140931 13f79535-47bb-0310-9956-ffa450edef68

rectang/lucy,pombredanne/apache-lucy,apache/lucy,kidaa/lucy,nwellnhof/lucy,rectang/lucy,rbevers/lucy,rbevers/lucy,nwellnhof/lucy,pombredanne/apache-lucy,nwellnhof/lucy,rbevers/lucy,apache/lucy,rectang/lucy,rectang/lucy,kidaa/lucy,nwellnhof/lucy,kidaa/lucy,rectang/lucy,kidaa/lucy,rbevers/lucy,apache/lucy,pombredanne/apache-lucy,apache/lucy,pombredanne/apache-lucy,apache/lucy,pombredanne/apache-lucy,rbevers/lucy,pombredanne/apache-lucy,kidaa/lucy,nwellnhof/lucy,rbevers/lucy,rectang/lucy,apache/lucy,kidaa/lucy,rbevers/lucy,nwellnhof/lucy,rectang/lucy,pombredanne/apache-lucy,apache/lucy,kidaa/lucy,kidaa/lucy,nwellnhof/lucy