Import squirrel_2.2.1_stable.tar.gz dated 2008-05-16, dos2unix'ed.
Import squirrel_2.2.2_stable.tar.gz dated 2008-09-23, dos2unix'ed.
IMport squirrel_2.2.3_stable.tar.gz dated 2009-06-30, dos2unix'ed.
Import squirrel_2.2.4_stable.tar.gz dated 2009-11-15, dos2unix'ed.
Import squirrel_2.2.5_stable.tar.gz dated 2011-11-27, dos2unix'ed.