Release 0.1.3

 * PSAPI. Add. parent PID
 * PSAPI. Add. `alive` and `exit_code` methods to `process` object.
 * Small fix for x64.

Release 0.1.2

* Support Lua 5.3

Fix. Build with MinGW32

Change. `status` pass to callback in as_XXX_array as forth argument.
Fix. Some minor bugs.

Add. rockspec for version 0.1.0