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
Update to latest Bulk
Merge pull request #440 from jaredhoberock/bulk

Update to latest Bulk
Correct errors in code snippets in documentation.
Merge pull request #441 from jaredhoberock/doc-fixes

Correct errors in code snippets in documentation.
Compile in 64bit, and remove 64 suffix from library on OSX. Fixes #356
Remove commented out code.
Initial complex implementation, ported from cusp
Improve complex exp, log and norm
Files that implemented the improved functions
Split float/double function in two files
Organize better the detail::complex functions
Improve complex cos,cosh,sin,sinh
Add code for complex tan and tanh
Fix wrong type for ctanh
Add complex sqrt
Add complex inverse trigonometric functions
Use std:: properly