errno is propagated into Exception\Error.
New autoloader process!

Thanks to @jubianchi, @marmotz, @osaris, @stephpy, @CircleCode and other
contributors, Hoa has a new autoloader process that eases integration of
Hoa in other projects!
Merge branch 'new_import' into incoming
Better composer compatibility
Fix a BC break!

If we autoload a “short”-entityname, we switch to the “full”-entityname,
as dnew() already does and as we did before (again, for BC).
Thanks @stephpy and @shouze!
Autoload drops if classname is not namespaced.
Format code. #mania
Enhanced trait_exists() shim
when required, autoloader is already called by class_exists
Format code. #mania
Be strictly compatible with PHP…

… even if it is not the best behavior regarding Hoa's usages.
Remove mentions to from/import in documentations.
Remove an used variable.
Forget to remove this old debugger attribute.
Format code. #mania
Remove HOA_VERSION_* constants.
Add enable(Exception|Error)Handler() methods.

Error- and exception-handlers are disable by default. To enable them,
use the appropriated methods.
Enable error- and exception handlers in CLI.
New exit codes: no longer used on exception codes.
Update compatibility with Windows.