Docs fix in memory management section
Check AVX OS support in host cpu check code
Standalone checker for detecting the best ISA supported on the host
Merge pull request #647 from dbabokin/dispatch2

CPU check fix
Merge pull request #646 from dbabokin/docs

Docs fix in memory management section
Typo fix
Merge pull request #649 from dbabokin/dispatch2

Typo fix
Fix logic that looks for shift builtins.
Merge pull request #651 from jbrodman/shiftfix

Fix logic that looks for shift builtins.