Corrected bug in normal_distribution_portable

Returned standard normal, ignoring specified mean and stddev
Merge pull request #426 from eford/patch-1

Corrected bug in normal_distribution_portable
Avoid leading underscores in identifier names.
Merge pull request #429 from jaredhoberock/leading_underscores

Avoid leading underscores in identifier names.
Merge pull request #430 from jaredhoberock/bulk

Update to latest Bulk
Merge pull request #432 from jaredhoberock/bulk

Update to latest Bulk
Update to latest Bulk
Update to latest Bulk
Workaround unused variable warnings
Merge branch 'master' of github.com:thrust/thrust into small-fixes

Conflicts:
	thrust/system/cuda/detail/bulk/detail/alignment.hpp
Merge pull request #434 from jaredhoberock/small-fixes

Small fixes
Merge pull request #436 from jaredhoberock/bulk

Update to latest bulk
Workaround unused variable warnings in CUDA's scan implementation.
Merge pull request #437 from jaredhoberock/small-fixes

Workaround unused variable warnings in CUDA's scan implementation.
Actively check for clang
Merge pull request #438 from FilipeMaia/master

Actively check for clang
Forward execution_policy down into launch_closure.
Use exec to allocate temporary memory inside of launch_closure.
Pass exec to launch_closure.
Merge pull request #439 from jaredhoberock/custom-allocation

Custom allocation
Merge pull request #440 from jaredhoberock/bulk

Update to latest Bulk