remove dtype hash hack since it is fixed in pypy
Merge pull request #64 from yuyichao/master

remove dtype hash hack since it is fixed in pypy
Update compyte
Merge branch 'master' of ssh://github.com/pyopencl/pyopencl
Ignore more flake8 errors
Implement hstack() for arrays
Fix variable shadowing in scan
Use appdirs module to get appropriate cache directory.

This fixes an insecure temporary file creation bug on UNIX-like systems.
Merge pull request #68 from bmerry/master

Use appdirs module to get appropriate cache directory.
Improve docs on buffer/buffer obj ambiguity