V2.1.0 release

• run regression tests (+backup on colosse) v2.1.0/SystemTests
• run unit tests v2.1.0-Release/UnitTesting
• check version in Makefile
• ./Ray -help > MANUAL_PAGE.txt
• compile with make
• compile with cmake
• git tag vx.y.z
• do a tar.bz2 (ShipProduct), compile it (make + make install) and test it
• upload the tarball on sf
• update the web site (download + manual)
• post an email on the list including changes (dump-changes)
• update the seqanswer thread
• update release list (Ray & RayPlatform)