ViennaCL 1.1.0 released

Even though not initially intended, the new version 1.1.0 is now just in time for Christmas! The highlights of this new version are as follows:
- Full BLAS level 3 support
- Multi-GPU support
- Two additional preconditioners
- Automated performance tuning environment
- ViennaCL can operate with existing, user-provided OpenCL contexts
More information can be found on the project homepage.

Thanks for the patience and merry christmas to all users of ViennaCL!