Merge pull request #161 from claudioandre/unstable-jumbo

Almost 60% performance gain on GCN for sha512crypt.
Shared (unsplit) PBKDF2-hmac-sha1 OpenCL kernel endian bug fixed (only
affecting non-word key lengths). And some other ZIP tweaks.
des-opencl:added fall back kernels
Merge pull request #163 from Sayantan2048/unstable-jumbo

des-opencl:added fall back kernels
Revert "Load raw-md5 and raw-sha1 OpenCL formats before others."

This reverts commit 338059c3aafff2cfdc2a1f8feaa129394900542e.

Revert "Register GPU formats first (even before core formats - this is experimental)"

This reverts commit 76a226e546253353d84421c75b77527806a03ba7.